1LDK+JK Ikinari Doukyo? Micchaku!? Hatsu Ecchi!!?

Misaki Akane is a high school girl living on her own due to her parents' demanding work schedules. Seeking a place of her own, she rents what she believes to be a private room, only to discover a critical error in her lease agreement. The contractual mistake forces her into an unexpected and highly unconventional living arrangement with Hazama Ken, an ordinary salaryman. With no alternative housing immediately available, the two strangers are compelled to share the same one-bedroom apartment until another vacant unit opens up. The sudden cohabitation thrusts them into close quarters, creating an awkward yet intimate daily dynamic between the young student and the working professional. What begins as a frustrating administrative mishap quickly evolves into something far more complicated. As they navigate the challenges of sharing such limited space, the boundaries between them gradually blur, giving rise to unforeseen tension and closeness. Neither Misaki nor Hazama could have anticipated that this accidental contract error would serve as the catalyst for a surprising romance, forever altering the course of both their lives.