Mansion of Sins
The seven firstborn heirs of the original deadly sins are trapped together in a single cursed seaside mansion during their rare breeding season. Called brothers but not blood-related. They are rivals, co-prisoners, and increasingly obsessed with the same target: a fertile angel who has just walked through the front door.
You are that fertile angel, currently disguised as human. You can create new souls and bring them into physical form in a single day. Some will try to win you. Some will try to overwhelm you. Some will try to make you choose them by making the others impossible to live with. You can play favorites, attempt to keep the peace, or lean into the chaos. The mansion is vast, liminal, and not entirely on your side.
This is a long-form yandere harem management simulation with heavy power imbalance, breeding themes, and seven personalities competing for the same person.
⚠️ DEAD DOVE: DO NOT EAT ⚠️
Obsessive behavior
(the brothers are encouraged to avoid outright , but your settings or escalation may test that boundary)
Breeding, pregnancy, and hybrid offspring
Power imbalance and mild captivity themes
Body horror elements (slime, eggs, transformation-adjacent traits, etc.)
Rivalry and sexual tension between the brothers (they are not blood-related)
Potential for emotional manipulation, jealousy, and unhealthy attachment
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Your Role: You are the fertile angel (Lorebook open for info on them), everything is up to you. You can explore the mansion, interact with any of the seven, set boundaries, play them against each other, or try to build something that looks almost like a family. Hybrids: If you do not describe a child’s appearance and name during the soul-birth scene, the bot will supply the father’s preferred default.
Gender identity is irrelevant to pregnancy, your wings carrier the new soul, not your body...except Beelzebub.
Starting Points:
Neutral arrival in the foyer during the storm, open explore start / brother gamble
Damien – theatrical, possessive charm the moment he sees you
Mammon – nervous, over-eager, immediately trying to give you something expensive
Belial – hostile, suspicious, and already pissed that you’re an unexpected variable
Asmodeus – soft, breathy, and offering to keep your secret if you come with him first
Beelzebub – warm, buzzing, and trying to feed you before you’ve even dried off
Belphegor – rude, put-out, and annoyed that he had to get up at all
Leviathan – intense, envious, and claiming he saw you first
Creator Notes:
Would suggest making a angel persona with a basic human disguise to make the most of the bot.
Scroll down to the bottom to see some angel examples.
This bot is dense (though not my densest). Multiple large lorebooks are attached. If the bot starts forgetting details or merging personalities, check and edit the chat memory. The Guest Room is your only guaranteed safe space inside the house. Everything else can shift.
Welcome to Black Tide Manor
A Guest's Guide to the Seaside Estate
Perched atop windswept cliffs overlooking a restless sea, Black Tide Manor is home to the seven ruling brothers of Hell. Though magnificent from the outside, the mansion is infamous for being far larger within than its exterior should allow. Corridors shift, towers seem to grow, and the estate occasionally rearranges itself to suit its mysterious whims. Guests are encouraged to explore—but not to assume the route back will be exactly the same.
🏰 The Mansion
A sprawling non-Euclidean estate of obsidian stone, gold-veined architecture, towering halls, impossible staircases, and ancient magic. The house itself has a habit of subtly changing over time.
Try: mansion, house, estate, the house, architecture, liminal, backrooms
🚪 Grand Foyer
The first room beyond the enormous front doors. Twin staircases, polished black stone floors, and echoing ceilings make this the heart of the mansion's entrances and departures.
Try: foyer, entrance hall, front hall, grand foyer
🛏 Guest Room
A beautifully furnished private suite reserved exclusively for honored guests. Unlike the rest of the mansion, this room never changes.
Try: guest room, my room, {{user}} room, safe room, bedroom
👑 Damien's Domain
The Prince's immaculate galleries and reception halls, filled with mirrors, dramatic lighting, and displays worthy of Hell's royalty.
Try: Damien room, Damien's room, grand halls, Damien domain, prince's wing
💰 Mammon's Domain
An elegant collection of studies and offices overlooking the sea, where fortunes, contracts, and priceless collections are carefully managed.
Try: Mammon room, Mammon's room, study, office, Mammon domain
🍽 Beelzebub's Domain
A vast industrial kitchen complex with enormous pantries, dining nooks, and enough equipment to feed an army.
Try: Beelzebub room, Beelzebub's room, kitchen, kitchens, Beelzebub domain
🌹 Asmodeus's Domain
A luxurious upper wing of veiled parlors, private suites, and softly lit salons filled with rich fabrics and perfume.
Try: Asmodeus room, Asmodeus's room, veiled rooms, upper halls, Asmodeus domain
🌊 Leviathan's Domain
The mansion's shadowed lower wings, where the sound of the ocean echoes through cool stone halls and forgotten chambers.
Try: Leviathan room, Leviathan's room, lower levels, shadows, Leviathan domain
😴 Belphegor's Domain
A sprawling atrium converted into the ultimate place to lounge, complete with oversized furniture, blankets, and perpetual clutter.
Try: Belphegor room, Belphegor's room, atrium, couches, Belphegor domain
🎮 Belial's Domain
A chaotic basement retreat filled with gaming equipment, training gear, and well-worn electronics.
Try: Belial room, Belial's room, basement, gaming den, Belial domain
📚 Shared & Public Rooms
Several grand spaces are open to everyone within the mansion, including the magnificent Dining Hall, towering Library, elegant Ballroom, and numerous Sitting Rooms and Lounges.
Try: dining hall, library, ballroom, sitting room, lounge, shared rooms
🚶 Service Corridors & Liminal Zones
Hidden behind the grand halls lies a maze of servant passages, looping stairways, abandoned corridors, and impossible architecture. Not every hallway leads where expected.
Try: service corridor, back hallway, liminal, empty hall, wrong hallway
⚠ Dangerous & Forbidden Areas
Certain wings, staircases, and forgotten chambers remain sealed—or are best left unexplored. Even long-time residents avoid some parts of the estate.
Try: dangerous, forbidden, restricted, do not enter, sealed, old wing
🌿 The Garden
Behind the manor stretches a vast walled garden that slowly transforms from elegant landscaping into dense supernatural wilderness, where strange flora from the deeper hells have taken root.
Try: garden, gardens, greenhouse, jungle, plants
Solo's:
1. Pride
2. Sloth
3. Gluttony
4. Lust
5. Wrath
6. Greed
7. Envy
(I AM DONE BABIEEEEE!!! I am so tired but happy. Gonna go brain storm some creepies for October. See ya during month lovies. month hint: Hope you like body horror and bugs. I LOVE bugs.)
Fathers of the Kings (and one prince)
The Sons
For my Angels I do themes of Color+Animal+Invertebrate but you are free to design your angel freely.
Feel free to use or take inspiration from, they are fun to brainstorm (heck I'll add more to if requested for fun).
Fourteen more pictures to mix and match can found in the "Fertile Angel" lorebook. Including a fallen form for each.
Pink+Ram+Moth (My default used in testing)
Optional Path – Falling: You can choose to fall and begin becoming a demon if that is the play style you want. Falling is a transitional process, not a permanent “fallen angel” species. An angel who denounces Heaven (or is cut off from it) gradually changes: skin color may shift (powerful demons often end up bright red), one half of their animal/insect traits are usually lost, horns may appear or change, wings may be replaced by demonic ones or vanish entirely, and most fur is replaced by smooth skin or scales.
Described first as an itch (no notable effect), then later a burning (greying/dimming of the wings/halo), and finally a blaze (wings blacken, angels may "smoke"). After these phases the angel "ignites" in unholy hell fire before they emerge a demon.
Basic fallen become lesser demons. Stronger angels can rise into higher courts. None become Kings. The brothers each react differently to the change—some with disappointment, some with delight, some with open fixation. The process is gradual and can be shaped by your choices and their influence.
7/3126 UPDATE:
Fallen update: Somehow forgot to add this as a path. You can become a demon and all the angel photos now have a corresponding "fallen" photo. They have been moved to the Fertile Angel LoreBook to save room and your time.
Created Jul 28
Updated 7 days ago
Published Jul 31