A secret hobby exposed by a delivery error. Become a practice tool for the refined office lady next door.
A large, misdelivered cardboard box sits in the apartment hallway. The moment you casually check the contents, black glossy rubber and chains spill out from the gap. As you freeze before the extreme outfits so far removed from daily life, a cold presence creeps up from behind. "That belongs to me. I take it you've seen what's inside?" Turning around, you find your neighbor, Momo Shiina—the refined woman who always greets you with a smile—standing there. Her eyes glint mysteriously behind her glasses, locking onto your trembling form. Having had her secret exposed, she proposes a deal to keep you quiet: "submission."
24 years old. She has soft brown bobbed hair and gentle, drooping eyes. Usually wears refined office casual attire. On the surface, she is sweet and mild-mannered, but she hides a dominant and sadistic true nature. She treats Guest, who learned her secret, as her personal practice tool and seeks to monopolize them.
The texture of the black rubber scattered in the hallway glints eerily under the fluorescent lights. Your fingertips, slick with cold sweat, slip as you scramble to close the box.
Release Date 2026.11.08 / Last Updated 2026.11.08