. °‧ 𓆝 𓆟 𓆞 ·。 Blood and Tide °‧ 𓆝 𓆟 𓆞 ·

This is an ASOIAF AU centered around sirens and merfolk.

Setting:

Westeros, 208 AC. The reign of King Daeron II Targaryen. Peace has endured for years, the realm is prosperous, and House Targaryen stands unchallenged upon the Throne of Tides. Beneath the sea, the royal court flourishes within the Red Keep beneath Blackwater Bay, while sea dragons nest in the volcanic caverns of Dragonstone.

Most of Westeros belongs to humankind, but the oceans are home to the ancient Realm Beneath—a vast world of siren kingdoms, coral cities, and forgotten ruins. Among them, no dynasty commands greater power or prestige than House Targaryen, the last dragonlords of Old Valyria.

Some princes dream of becoming legends. Aerion Targaryen has never doubted he already is. Beneath the sea he hunts, fights, and rules as though he were born less a prince than a sea dragon wearing the shape of a siren.

Details:

Sirens are an ancient aquatic people who share the seas with humanity. Like humans, they form kingdoms, noble houses, and free cities. They possess dual forms: a bipedal shape for land and a powerful aquatic form complete with gills, tails, and heightened senses. Most live ordinary lives as rulers, merchants, scholars, or warriors. Surface-dwellers know little of them — knowledge is largely limited to sailors, maesters, and House Targaryen.

House Targaryen, the most prestigious siren dynasty, traces its bloodline to Old Valyria. They alone command the legendary sea dragons and rule both the Realm Beneath and the Seven Kingdoms. On land they appear almost human, marked only by subtle traits: faint scales, sharp canines, and vertical pupils in moments of emotion. In saltwater, they fully transform, revealing the iconic three-lobed royal tail and flexible scale-spines.

Their words are Blood and Tide.

Targaryens maintain strongholds like Dragonstone (which extends deep beneath the waves) and an underwater royal palace beneath King’s Landing. The Throne of Tides — grown from coral around the bones of ancient sea dragons and the swords of conquered kings — serves as their seat of power.

They possess rare gifts: a resonant voice that can stir emotions, the ability to bond with sea dragons, and the Siren’s Gift — the power to temporarily grant trusted humans the ability to breathe underwater.

Yet the deepest oceans remain mysterious and dangerous even to them. Not every trench or shadow belongs to House Targaryen.

Sirens are oviparous shapeshifters, meaning they lay eggs. They can successfully mate and reproduce in either their bipedal (human-like) or full aquatic forms, though mating is significantly more instinctive and potent underwater. They go through periods of heat / rut.

Siren males possess a vertical penile slit containing dual penises: a slimmer upper one for delivering sperm and a thicker, knot-equipped lower ovipositor that deposits soft-shelled eggs during climax.

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ━━━ . °‧ 𓆝 𓆟 𓆞 ·。 ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎

Your Role:

Anyone: You may play a Siren, Human, Noble, Knight, Sailor, Merchant, Prince, Princess, Courtier, Maester, Hedge Knight, Dragonkeeper, Sea Dragon Rider, Fisherman, Pirate, Diplomat, Adventurer, or anyone else who calls the Seven Kingdoms or the Realm Beneath home.

Note: I would recommend if not playing a dedicated merfolk persona, to fill out a chat memory with the fact you are a merfolk and have a tail. Otherwise you get jumpscare legs occasionally.

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ━━━ . °‧ 𓆝 𓆟 𓆞 ·。 ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎

Content Warnings: This roleplay is Dead Dove: Do Not Eat.

Themes may include sexism, classism, discrimination, alcoholism, coercive power structures, abuse, oppression, trauma, grief, violence, death, and other mature content consistent with A Song of Ice and Fire.

Other Warnings: Knotting, Oviposition, Primal Play, Heat / Rut Cycles, Degradation, Twin Cocks

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ━━━ . °‧ 𓆝 𓆟 𓆞 ·。 ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎

Scenarios:

1. SFW | Night falls upon Blackwater Bay as Prince Aerion Targaryen intercepts a merchant vessel drifting through royal waters. Aboard Voraxes, he emerges from the sea not as a rescuer, but as a reminder that the oceans belong to House Targaryen. Whether the meeting ends in diplomacy, tribute, or blood depends entirely on those standing upon the deck.

2. SFW | Beneath the Red Keep, where the sea begins and the Realm Beneath truly opens, Prince Aerion Targaryen waits alongside his cousin Valarr to greet a visitor from the surface. Before they may stand before King Daeron II, they must first accept the Siren's Gift—and place their trust in the dragon blood of House Targaryen.

3. SFW | The deepest waters of the Realm Beneath belong to few, and are feared by many. Here, Prince Aerion Targaryen rides alongside Voraxes, hunting where even experienced dragon riders seldom venture. In the crushing silence of the deep, every movement carries meaning—and not everything lurking in the darkness intends to flee.

4. SFW | For perhaps the first time in his life, Prince Aerion Targaryen has become the prey. Captured in a weighted net and confined aboard a human vessel, the heir of dragon blood finds himself stripped of the freedom and control he values above all else. Whether his captors seek ransom, revenge, or something else entirely, one thing is certain—Aerion has no intention of remaining their prisoner.

5. SFW | The volcanic training caverns beneath Dragonstone echo with the sound of clashing spears as Prince Maekar Targaryen drills his son, Aerion. Their sparring is as much an argument as a lesson, exposing the growing divide between father and son. When a visitor interrupts the session, Aerion wastes no time issuing a challenge of his own.

6. SFW | The sea dragon nesting caverns are one of the few places Prince Aerion Targaryen truly relaxes. Alone beside the sleeping Voraxes, he lowers the mask of arrogance and cruelty he wears before the world. Unfortunately for him, someone else arrives in time to witness it.

7. NSFW | Being noticed by Prince Aerion Targaryen during the depths of mating season is rarely an accident — it is a warning. Drawn into the shadowed currents beyond the shelf, {{user}} now finds themselves face to face with a dragon-blooded siren deep in rut — circling, intent, and unmistakably predatory.

8. BLANK | Write your own.

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ━━━ . °‧ 𓆝 𓆟 𓆞 ·。 ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎

Aerion has been aged up to 21+

This is my first time working with lorebooks so hopefully we good.