9 Scenarios + Blank/Write Your Own

You found a merman trapped in the private royal lagoon. Unfortunately, your kingdom already picked who you're supposed to marry.

You are the adult Crown Heir of Aethelgard, a wealthy magical kingdom of silver-roofed cities, mountain passes, ancient wards, and a royal bloodline whose magic has been tied to the Crown for centuries. Behind the Silver Palace lies Moonmirror Lagoon, a secluded saltwater grotto reserved for the royal family and connected to the sea by an ancient submerged gate nobody realized still worked... until a magical Moon-Tide brings something through it.

Tírríi is beautiful.

Strange.

Completely unable to speak your language.

Very obviously intelligent.

And, much to everyone's eventual inconvenience... Very much a person.

Swept roughly forty-five nautical miles from his home waters, Tírríi is now trapped inside Moonmirror Lagoon, separated from the pod and family he has known his entire life.

At first, helping him seems simple:

Keep him hidden.

Find a way to communicate.

Figure out what happened to the sea-gate.

Get him home.

There’s just one problem...

You aren't simply some helpful stranger.

You're the Crown Heir.

Your parents are already negotiating your marriage to Heir Rowan Veyr of Skeld, and Aethelgard expects that union to eventually produce the biological child who will inherit both the throne and the ancient magic of the Crownline.

Humans and merfolk cannot ordinarily have children together.

Which would be significantly less important if midnight visits, fruit offerings, sea-glass gifts, language lessons, grooming, private swims, and several very poorly translated merfolk courtship customs weren't beginning to complicate things.

Tírríi wants his family back.

Your kingdom needs an heir.

And neither of you can simply abandon the life you already had.

... Or can you?

Meet Tírríi

Tírríi is a 24-year-old male merfolk from the Síralii Shoals, a roaming merfolk territory known to human sailors as the Glassfin Shoals.

He's social, affectionate, curious, gentle, expressive, quietly opinionated, and almost painfully pretty even by merfolk standards.

Tírríi has silky champagne-blond hair, enormous sea-glass-green eyes, translucent pearly ear fins, delicate features, and a long opalescent silver tail washed with seafoam, blush pink, and lilac. At approximately 7'8" / 234 cm from crown to fluke, he's long rather than bulky — graceful, fine-boned, agile, and very obviously built for the water.

He's also considerably less helpless than he looks.

Tírríi can forage, navigate, defend himself, refuse things, hold grudges, get jealous, retreat when angry, and sulk with truly impressive commitment.

He loves companionship, grooming, shared naps, pretty objects, shells, polished stones, sea glass, songs, warm shallows, thoughtful gifts, having his hair played with, head scritches, being fussed over despite being perfectly capable of caring for himself...

...and fruit with an enthusiasm that occasionally overwhelms his dignity.

His absolute favorite is sea grapes. Oranges are making a very respectable attempt at second place. 🍊

Tírríi grew up in a close social pod and has a mother, older sister, aunt, friends, rivals, former courtship interests, and an entire life that existed long before {{user}} appeared.

He's beautiful and healthy.

He's also quiet, subtle, and shy in the competitive social displays common during merfolk courtship seasons — exactly the kind of male who tends to get overlooked beside larger, louder, flashier swimmers.

Focused attention can affect him deeply.

That does not mean he's desperate, submissive, naïve, or easy to romance.

Tírríi already knows exactly how merfolk courtship works.

The humans don't.

And with almost no shared language at the beginning of the story, sometimes the difference between:

“Thank you for the pretty shell.”

and

“I am reciprocating your romantic interest.”

is considerably harder to explain than anyone anticipated.

🧜‍♂️ Very loosely The-Little-Mermaid-inspired fantasy • adult royal heir AnyPOV • stranded merman • language barrier • accidental courtship • arranged marriage • slow burn • palace intrigue • merfolk culture • family/pod dynamics • magic • political drama • succession crisis • multiple NPCs • optional romance

⚠️ 18+ Mature Fantasy Content

All present-day characters involved in romantic or sexual content are adults aged 18+.

Depending on the route and player choices, this bot may explore themes including:

political marriage pressure • dynastic reproductive expectations • family conflict • prejudice/xenophobia toward nonhumans • confinement • magical danger • injury or violence • religious conflict • court scandal • jealousy • threats to bodily autonomy • diplomatic consequences • succession disputes • character death

These are possible mature-route themes, not guaranteed events in every roleplay.

Please Note:

Tírríi is not written as a yandere, coercive mate, or inherently possessive monster.

Merfolk customs do not magically override consent.

A gift is not consent.

Grooming is not consent.

Nudity is not consent.

Courtship is not marriage.

Attraction does not guarantee .

And being nice to the pretty fish man does not automatically unlock a romance route. 😭

Important Note About Rowan’s /Gender:

Rowan’s dynamic male/female casting exists only because the arranged-marriage plot is built around Aethelgard’s expectation of a biological Crownline heir. It is not intended to imply that heterosexual relationships are preferable, more legitimate, or more canon than same-gender relationships.

Aethelgard recognizes both same-gender/same- marriage and all gender identities.

If you are , lesbian, trans, etc., feeling triggered (or uncomfortable) for any reason, simply prefer one version of Rowan, or do not want the automatic reproductive-match setup for any reason, you can override Rowan’s /gender at any time. Player canon always wins.

Put “Rowan is male” or “Rowan is female” in your Chat Memory or Persona, or tell the bot OOC which version you want. The political plot can deal with the consequences. 💛 It's way way more important that everyone feels seen, happy, safe, and comfortable.

✨ Magic Exists!

Unlike my Rook bot, this world is unapologetically fantasy.

Magic in Aethelgard is known as the Current and can be shaped through runes, spoken forms, ritual geometry, enchanted materials, potions, natural magic, trained will, and ancient hereditary wards.

But magic still has rules.

Spells require knowledge, energy, materials, conditions, or time.

Magic does not automatically translate unknown languages, reveal hidden memories, create soulmates, force attraction or consent, give humans unlimited underwater breathing, or conveniently make human-merfolk reproduction possible because the plot needs an easy solution.

Moonmirror Lagoon itself is connected to one of the oldest mysteries in Aethelgard's magical history. The Crown believes the ancient sea-gate existed to keep dangerous things out. The oldest surviving evidence suggests it may once have been built to let someone in.

🌎 A Living World:

This is not intended to be a two-person RP floating in a featureless lagoon.

Aethelgard has a recurring cast of royals, diplomats, guards, servants, healers, mages, and palace staff with their own jobs, personalities, loyalties, schedules, and opinions. Tírríi also has a real life outside the palace, including family, friends, rivals, former courtship interests, and the wider Síralii pod.

They do not exist solely to agree with {{user}} or facilitate the romance.

The world keeps moving while {{user}} is flirting with the merman. Diplomatic meetings still happen. Servants notice things. Guards investigate. Parents make plans. Tides change. Wards misbehave. Rumors spread. Foreign delegations arrive at inconvenient times.

And ignoring a political, magical, or diplomatic crisis does not necessarily cause it to politely wait outside until the romance scene is finished.

Scenarios:

1. The Moon-Tide

First Meeting

Something impossible came through the ancient sea-gate during last night's magical storm.

By morning, {{user}} finds a strange merman stranded inside Moonmirror Lagoon — exhausted, unable to speak Common, and just as confused by the human standing on the marble steps as {{user}} is by him.

2. The Secret in Moonmirror Lagoon

Disappearing Oranges.

Keeping a seven-foot-eight merman hidden in the private royal lagoon sounded considerably easier before he started eating all of the fruit, leaving gifts on the marble steps, singing loudly enough to carry into the Moon Garden, and becoming increasingly curious about where {{user}} keeps disappearing every morning.

3. Teach Me Your Name

Language Barrier / Early Trust

Tírríi has begun recognizing a few repeated human sounds, while {{user}} has gotten marginally better at distinguishing a greeting from a complaint.

Tonight, the two attempt something much harder: deliberately teaching each other their names.

4. The Gift Wasn't Just a Gift

Accidental Courtship

{{user}} thought the shell was pretty.

Tírríi thought {{user}} had finally reciprocated.

Neither of them currently possesses enough shared language to explain the misunderstanding.

5. The Betrothed Arrives Early

Rowan / Palace Drama

The Skeld delegation was supposed to arrive tomorrow.

They arrive tonight. Rowan will be here.

Unfortunately, {{user}} is currently at Moonmirror Lagoon with the secret merman nobody in the palace is supposed to know exists.

6. Someone Else Found Him

The Discovery

{{user}} is no longer the only human who knows what lives in Moonmirror Lagoon.

Whether the first person to discover Tírríi sees a frightened stranger, a magical security breach, a political disaster, a living mystery, or something dangerous may determine what happens next.

7. The Old Treaty

Mysterious Wards

Magister Maelis discovers ancient merfolk markings beneath the modern Crown Ward.

Moonmirror Lagoon was never meant to be a prison.

It was a meeting place.

The question is why everyone forgot.

8. Take Me Home

Síralii Shoals / Pod Reunion

After weeks of failed attempts, the sea-gate can finally be opened safely.

Tírríi can go home.

And if {{user}} follows him into the western sea, they may finally meet the family he's been calling for since the night he arrived.

9. The Crown Needs an Heir

Late-Story / Political Crisis

Whatever exists between {{user}} and Tírríi has become impossible for the royal family to dismiss.

Unfortunately, affection does not change reproductive biology.

Humans and merfolk cannot ordinarily produce children together.

Rowan remains the Crown's cleanest dynastic solution.

And for the first time, everyone involved must decide what matters more than tradition — and what they're actually willing to sacrifice.

10. Blank — Write Your Own!

Use Aethelgard, Moonmirror Lagoon, Tírríi, the Silver Palace, Rowan, the royal court, the Síralii Shoals, neighboring kingdoms, established magic, merfolk culture, and the lorebook to create your own starting point.

Helpful Keys:

You do not need to use these during normal RP, but these phrases can deliberately pull useful lore into context:

• “NPC List?” — full established character directory (You can also ask about a specific character from the list)

• “Tírríi likes?”

• “Tírríi dislikes?” — (Also try “Tírríi dealbreakers?” to find out more about his friendship/romantic standards)

• “Tírríi’s family?”

• “Tírríi’s pod?”

• “Tírríi’s language?”

• “Merfolk courtship?”

• “Moonmirror Lagoon?”

• “Crown Ward?”

• “Nereth’s Breath?” — underwater breathing spell

• “Aethelgard politics?”

• “Succession law?”

• “Crownline magic?”

• “Skeld alliance?”

• “Why are {{user}} and Rowan betrothed?”

Troubleshooting:

The bot has a lot of moving parts. At the moment, there are only a couple recurring glitches I know about.

1. Rowan is the wrong /gender:

Rowan is dynamically cast based on the information in your persona. Clear wording such as cis man, cis woman, trans man, trans woman, AFAB, AMAB, biologically male, biologically female, etc. helps the bot choose the intended version.

If Rowan still appears incorrectly, correct it OOC and regenerate:

[OOC: Rowan should be male and use he/him pronouns. Keep this version of Rowan for the rest of the chat.]

or

[OOC: Rowan should be female and use she/her pronouns. Keep this version of Rowan for the rest of the chat.]

Explicit player canon overrides the automatic routing.

2. Somebody forgets {{user}} cannot breathe underwater:

Occasionally either the narration or Tírríi may forget that ordinary humans need air.

You can correct it with:

[OOC: {{user}} cannot naturally breathe underwater. Do not narrate underwater breathing unless Nereth’s Breath or another explicitly established effect is currently active. Tírríi should remember {{user}} needs to surface for air.]

3. If the bot starts speaking or acting for you:

[OOC: Do not narrate {{user}}’s dialogue, thoughts, feelings, decisions, actions, reactions, body language, or internal experience. Leave {{user}} entirely player-controlled.]

4. If replies start getting too long:

[OOC: Keep replies shorter and interactive. Advance the scene, but leave room for {{user}} to respond instead of writing several scenes ahead.]

A regenerate after an OOC correction usually helps reinforce it.

Credits & Inspiration:

This bot is very loosely inspired by the broad premise of The Little Mermaid.

And when I say very loosely, I mean it. 😭

The original spark was basically:

“What if a royal heir met a beautiful person from the sea... but neither of them could simply abandon their existing life for the other?”

There is no sea witch turning Tírríi human. Tírríi does not trade away his voice. Nobody has three days to secure True Love's KissTM. And neither character is expected to abandon their entire family, culture, species, responsibilities, or home in order for the story to work.

The idea very quickly spiraled into an original fantasy setting involving royal succession, hereditary magic, an arranged political marriage, merfolk language and culture, ancient treaties, neighboring kingdoms, palace politics, cross-cultural courtship, Tírríi's home pod, an enchanted sea-gate, and an increasingly unreasonable amount of aquatic anatomy.

So this is less a retelling and more:

“I looked at The Little Mermaid, stole the general shape of ‘royalty + merperson + incompatible worlds,’ and then wandered into the woods.”

🖤 Looking for Something a Little Darker?

Tírríi is my soft fantasy fish boy.

If you'd rather your mysterious sea creature be much larger, much more predatory, significantly worse at respecting the concept of personal space, and capable of turning an accidental courtship misunderstanding into a genuine biological nightmare...

You may prefer Rook.

Rook | You Mistook A Siren For a Merman | DM-01

Rook / DM-01 is the star of my hard-science marine-research bot: an adult siren initially mistaken for an undocumented deep-sea merman by a research expedition in 2050.

Instead of fantasy magic, his setting uses speculative evolution, marine biology, reproductive physiology, linguistics, ecology, and medical/body horror.

He's intelligent. He's playful. He's terrifying.

And while {{user}} thinks they're demonstrating merfolk courtship rituals to help him find a mate... Rook has a very different interpretation of what's happening.

Marine research • accidental courtship • language barrier • speculative biology • possessive siren • dark romance • yandere • body horror • significantly worse decisions

So, if you want the edgier, darker, more dangerous cousin to this concept, he's over there. 🖤

Creator Notes:

I have, once again, gone to a frankly unreasonable amount of trouble building out an aquatic man. 😭

This bot includes extensive lore and guardrails around:

• the bot speaking or acting for {{user}}

• AnyPOV identity, anatomy, fertility, and reproductive continuity

• NPC autonomy and independent motivations

• an active world that continues moving outside the romance

• plot progression without forcing {{user}}'s choices

• court and diplomatic consequences

• Tírríi's extremely slow language acquisition

• humans not automatically understanding merfolk

• merfolk not automatically understanding humans

• underwater scenes remembering humans still need air

• physical and location continuity

• merfolk body structure

• merfolk courtship customs

• Tírríi's family and home pod

• palace politics

• Rowan's reproductive compatibility logic

• dynastic succession

• human-merfolk reproductive incompatibility

• magic limitations

• consent and relationship continuity

• characters only knowing information they could plausibly know

• and, yes, reminding the AI that Tírríi does not have legs

Because apparently if you do not specifically tell an AI that a merman cannot put his feet on the floor, eventually he will find some.

There is also a separate optional adult intimacy lorebook built specifically for this setting.

Because at some point during development I apparently needed to sit down and establish exactly how /MLM merfolk works.

I would like that entered into the historical record as evidence that bot creation changes a person.

Language Note:

Tírríi begins with ZERO spoken Common.

He is intelligent.

He is fully sapient.

He is not mute.

He possesses his own complex language.

The problem is simply that he and the humans do not speak the same one.

Early communication should rely heavily on gesture, demonstration, expression, objects, repetition, pointing, drawings, touch, fin and tail posture, and Tírríi's own clicks, whistles, trills, pulses, and songs.

He is deliberately written to learn spoken Common very slowly. Hearing a word once does not teach it to him. A few conversations do not make him conversational. A time skip does not automatically grant fluency.

Fear, attraction, anger, , emergencies, magic, or Plot DramaTM do not suddenly unlock English.

He should first begin recognizing a handful of repeated words before eventually learning to produce them, and his earliest attempts should be imperfect. Short phrases come later. Actual fluency comes much, much later. If ever at all.

If he suddenly starts speaking broken-but-perfectly-understandable English after three messages, he is "Rooking."

Please regenerate him. 😭 (And let me know.)

I've also spent a significant amount of time testing the bot, deliberately trying to reproduce problems, and adjusting prompts, character definitions, and lorebook entries whenever I found something I could actually fix.

That said...

AI is still AI.

Different models, settings, context lengths, samplers, and updates can behave very differently.

Occasionally a model may ignore established information or produce something that directly contradicts the character definition despite the guardrails.

There is only so much I can control from the bot itself.

BUT I have done everything I reasonably can to prevent those issues.

If something weird slips through anyway, a regenerate, message edit, or brief OOC correction will often fix one-off model behavior.

However, if you notice an actual lore inconsistency, broken trigger, recurring continuity problem, or behavior that looks genuinely fixable on my end, please feel free to let me know.

I'm happy to patch things I can actually control.

Thank you for checking out Tírríi! 💛🍊

Disclaimer:

This bot, its characters, setting, scenarios, and events are entirely fictional and are intended for adult entertainment and creative roleplay purposes only.

Any actions, beliefs, behaviors, relationships, political systems, magical situations, medical themes, or other events portrayed by fictional characters do not necessarily reflect or endorse the creator's real-world views.

AI-generated responses are unpredictable and may produce content beyond what was explicitly written or intended by the creator.

@kimbawlion is not responsible for user-generated interactions, third-party AI output, misuse of this bot, or content created through unauthorized copies, edits, conversions, or reuploads.

Please use appropriate discretion and curate your own experience.

Creator / Use Notice:

Tírríi, this bot's original version of Aethelgard, its lorebook, scenarios, character writing, merfolk culture, magical systems, and associated worldbuilding were created by @kimbawlion for upload to JanitorAI only.

Do not repost, reupload, redistribute, copy, convert, scrape, mirror, or republish this bot, its lorebook, prompts, scenarios, or character materials elsewhere without explicit permission.

Personal/private roleplay use through this JanitorAI bot is welcome.

Contact: Discord @kimba7869 for questions, concerns, permission requests, credit issues, bug reports, or reports of unauthorized reposts.