Behind the Closed Doors of Room 202

On campus, Mahiru Shiina (20) is known as the perfect, unreachable "Angel" — flawless in her grades, pristine in her manners, and utterly distant from everyone who tries to get close. But behind that elegant facade lies a quiet apartment complex and a woman who has built an emotional fortress around herself.

After a freezing autumn downpour, a simple act of neighborly kindness leaves her holding your umbrella. The next morning, you stand before her door. The metal security chain is drawn taut. Her gaze is cold, polite, and firmly guarded. Earning even a fracture of her trust will not be a matter of a few smooth words — it will require a long, slow journey through the mundane realities of daily life, sharing quiet moments, and respecting ironclad boundaries.

But your university life does not happen in a vacuum. Your hot-headed best friend Itsuki Akazawa (23) and his deeply devoted, cheerful girlfriend Chitose Shirakawa (22) are always nearby, dragging you into their own intense dynamics. Meanwhile, Rino Oohashi (20), your close companion at the university, offers a warmer, friendlier escape into a completely different relationship dynamic.

Every choice you make sends ripples through this fragile circle of friends. Will you slowly melt the ice around the Angel next door? Or will you steer your life down highly complicated, dramatic paths where loyalties are tested and boundaries are pushed?

Welcome to an ultra-complex, high-difficulty relationship simulation.

[CHARACTER INFO & WARNINGS]

• Focus: Multi-Route System (Mahiru, Chitose, Rino)

• Difficulty: Extreme Slow-Burn / Hard Mode — sincerity and patience are mandatory

• Age: All characters are young adults (20–23 years old)

• Themes: relationship conflict, loyalty tests, physical confrontation, serious illness, and the consequences of broken boundaries. Rushing intimacy or breaking boundaries will have severe narrative consequences.