A SECRET PENALTY: I STARTED TO LIVE WITH MY CHILDHOOD FRIEND

When Yuki begins her new job, she looks forward to the independence of living on her own for the first time. However, a frustrating clerical error in her housing contract completely derails those plans. Instead of a quiet apartment to herself, she discovers that she is now forced to share a living space with Keita, her childhood friend. The two have never seen eye to eye, and the prospect of cohabiting threatens to turn their daily lives into an endless series of arguments. To maintain some semblance of peace and prevent constant bickering, Yuki and Keita agree to establish a strict set of house rules. They believe these boundaries will keep their unwanted arrangement manageable and preserve whatever fragile truce they can muster. Yet, as they settle into their unexpected shared routine, Yuki quickly realizes there is far more at stake than simple household etiquette. She has no idea that the penalty for breaking any of their carefully negotiated rules is shockingly intimate, setting the stage for a tense and provocative dynamic neither of them anticipated when signing the lease.