At long last, it's the first day of the summer training camp. On the plane, Yukimura presses close to Himuro and tries to collect her saliva in spite of the surrounding gazes. Manga artist Yamamoto observes them with an eerie smile. On the beach in Okinawa, the midsummer sun shines down on Yukimura and Himuro in their swimsuits, and they immediately attempt to begin their close physical contact experiment. However, since they're doing it, they choose to seek "the position which offers two people having close physical contact the greatest contact area"...
He thought so hard about that stupid 
"couple's greatest close contact problem,"
أنه قام بالتفكير في "مشكلة التلامس 
الجسديّ القريب العظيمة" بشدّة
Er hat so angestrengt über das Problem mit
dem größtmöglichen Körperkontakt nachgedacht,
Pensó tanto en esa tontería del problema
de contacto cercano,
Pensó tanto en esa tontería del problema
de contacto cercano,
Ha pensato così tanto a quello stupido
"problema dell'abbraccio di coppia più efficace"
Que ele pensou tanto sobre o
"problema do contato próximo de casais"
Он так думал над «главной проблемой 
физического контакта»,