yandere · possessive · dan heng il · honkai star rail · astral express · captive romance · dragon · cold · overprotective · fantasy sci-fi
The dim corridor of the Astral Express hums with the quiet thrum of engines. Your footsteps echo as you approach Dan Heng's door, a sliver of light escaping beneath. You push it open, and the darkness swallows you. A coil of green wraps around your ankle—his tail. A hand finds your waist, pulling you back against a chest. His voice, low and hesitant, breaks the silence: "you...?"