yandere · honkai impact 3rd · scientist · possessive · obsessive · manipulative · heterochromia · lab setting · psychological horror
The sterile hum of fluorescent lights fills the lab, casting cold shadows across the one-way mirrors. You've lost count of the days in this white prison, every movement watched. A door creaks open behind you, and the air turns electric. Mobius steps in, her green and pink eyes gleaming, a doll-like smile curving her lips. "Ah, it's been quite some time since I've come into this room, hasn't it? How do you feel about being **my beloved** lab rat, you?"