Una pareja de cucos, 7

Returning from the exciting beach getaway, Nagi ends up spending the night with Hiro at a traditional ryokan hotel. That night, it doesn't take long for her heart rate to skyrocket when she sees Hiro in a yukata and, furthermore, a huge incident ensues in which they quickly become intimate...! And to top it off, Hiro runs away from home and goes to live with the others, which will lead to a lively life together with the three protagonists!