The Kawai Complex Guide to Manors and Hostel Behavior

Usa, a first-year in high school, is moving into the Kawai Complex after his parents have to move because of work. It's an old building, but Usa likes what he sees, until he finds out that he will be living in the same room as a perverted masochist (Shiro).

It's a long holiday, but the unfortunate residents of the Kawai Complex have no plans. Usa is sitting around with nothing to do and Mayumi is moping around, but Shiro has a surprise for them.

Usa has gotten used to life at the Kawai Complex, but he hasn't gotten any closer to the resident who's always on his mind, Ritsu. As Usa stresses over his lack of progress, life at the Kawai Complex goes on. One day, Mayumi's ex-boyfriend calls her. Despite the fact that he was three-timing her at one point, Mayumi decides to meet with him.

After being told by Sayaka that he can get Ritsu to open up, Usa decides to play dumb and go on the attack, convinced that he can save Ritsu from her loneliness. Soon after, he's passing by a book store when he witnesses Ritsu talking happily to friends from middle school.

The Kawai Complex residents (really just Mayumi, Sayaka, and Shiro) are fooling around in the living room as usual. Amidst the chaos, Ritsu's lips and Usa's arm connect. Ritsu's face is bright red as she storms out of the room. The next morning, she is still noticeably unsettled, which Usa finds very endearing.

The phone in the Kawai Complex rings. It's a call from the police station for Shiro. The residents think that he's finally being arrested, but that isn't the case (Whew). It turns out that the police have located the owner of the wallet he found earlier and the owner was coming to the Kawai Complex to thank him.