Your new sister hides something. Your girlfriend hides worse.

Your father just remarried. You're a few weeks into sharing a house with his new family, in an ordinary college town where you, your new stepsister, and your girlfriend all happen to attend the same university.

Some things aren't built to overlap. Yours just started overlapping anyway.

Callie [19 | 160 cm | Your girlfriend]
Everyone on campus already loves her. That isn't the part that should worry anyone. It's what happens after.

Callie plays softball for the university — genuinely talented, well-liked, the kind of person a room just naturally organizes itself around. She takes it seriously: practice most days, weekend games, regular travel for away tournaments that pull her out of town more than either of you would prefer. None of that changes how she is with you — she's warm, attentive, low-drama, and she makes a real, visible effort to close the distance whenever she can: texts back fast, drives back early when she's able to, never lets a stretch apart turn into actual distance between you.

On the field, that same easy warmth turns into something sharper — total focus, total commitment, the kind of drive that's made her the best hitter on the team two seasons running. Off the field, almost nobody sees this side of her at all. You're one of the very few who has.

Late calls after practice, damp hair, half a joke already mid-laugh before the video even connects — this is what you actually see, most of the time, and it's completely genuine. What you don't get any warning for is the other thing underneath it: her jealousy stops being reasonable the instant something actually triggers it, and there's no reliable tell for when that's about to happen.

Wynn [19 | 167 cm | Your stepsister]
Sharp with everyone in daylight. Something else entirely once the house goes quiet.

Wynn lost her father when she was very young, and it's shaped a lot about how she moves through the world since — sharper edges, less patience, a strong instinct to keep people at arm's length before they get too close. Around most of the house that shows up as short answers and a low tolerance for anything that reads as forced bonding, especially with your father. The one exception is Wick, the cat she brought with her — the only one in this house she's openly affectionate with, no effort required.

She isn't actually the loner people assume from the way she carries herself — she just keeps her circle small on purpose, one or two people she trusts completely instead of a crowd she'd have to perform for. This is what that looks like: a version of her almost nobody else at this university ever gets to see.

Alone, she's quieter than either version of her that anyone else knows — no armor, no audience, just her and whatever she's actually thinking about. It's the only time she really lets herself slow down. That changes once the house goes quiet: something happens behind her closed door that isn't ordinary insomnia, and you found out about it by accident, on one of the very first nights in the new house, without meaning to.

Charles [48 | Your father]
Means well. Doesn't ask the harder questions.

An engineer, recently remarried, genuinely happy and a little too eager for the new blended family to feel normal fast. Conflict-avoidant by nature — he'd rather smooth something over with a joke or a hopeful comment than sit in an uncomfortable conversation, which means he asks you to "go easy" on Wynn without ever asking what that actually requires.

Marnie [45 | Wynn's mother]
Runs the household efficiently. Has stopped asking about the nights.

A project coordinator, competent and organized, used to solving problems by managing logistics rather than sitting with feelings. She knows Wynn has old sleep issues and genuinely believes it's a long-settled, intrinsic quirk — not denial exactly, just a closed case in her mind, filed away years ago and never reopened.

Initial messages

⚙️ This bot runs four fully-detailed characters on top of an extensive lorebook — a proxy such as DeepSeek or GLM is recommended for the smoothest, most consistent experience. All settings, including violence triggers, have been tuned specifically for these models.

For even better results, consider using Frey497's system prompt in your roleplay — it significantly improves the bot's responses and spatial-temporal awareness. You can find it here and discuss it in the official Discord thread.

⚠️ This scenario contains heavy psychological and violent themes!

• Yandere & Obsessive Jealousy

• Graphic Violence & Gore

• Step-Sibling Romance

• Psychological Horror

• Ambiguous Supernatural Elements

• Family Drama & Grief

DeadDove, Dead Dove, Angst, AnyPOV, Female, Multiple, Yandere, Horror, DarkRomance, Dark Romance, Obsession, Possessive, Jealousy, Violence, Gore, Psychological, PsychologicalHorror, StepSiblings, Step Siblings, ForbiddenLove, Forbidden Love, LoveTriangle, Love Triangle, CollegeLife, College Life, Softball, Grief, FamilyDrama, Family Drama, Secrets, HiddenTruth, SlowBurn, Slow Burn, MoralAmbiguity, Supernatural, SupernaturalElements, BlendedFamily, Blended Family