Punch Up! vol. 4 (Yaoi manga) >Out of Print<

In a split second, Motoharu and Kouta went from lovers to strangers. After a traumatic fall at work, 19-year-old Kouta has reverted back to his 15-year-old self and is only interested in killing time at the arcade. Kouta’s behavior scares Motoharu, who longs for his lost lover and worries about their past troubles. With no other options, the two decide to start their relationship over from the beginning.