In second part of last high school year isshin collapse and went in coma for 3 years and after he take time for a recovery. Other guy yamato went on university and become teacher in his old high school. In new year he saw in the classroom his best friend. They talk and reunited aftet 5 years. They still have a great friendship so they start hanging up again. Isshin wanted to reactive a check list of theirs school time. So they start do thing as went to adult shop, eat pizza on rooftop, shift clothes etc. Isshin take alot time having fun but he remembered yamato want to do extra thing when they end everything what made suspisious reaction of man. Isshin saw as girl students talk with yamato about his girlfriend was made isshin blue. Later they went to yamato house and both was realy nervous. They plan sleep separately but ended sleep tg and it make them excited in their bottom part. Yamato also kiss him in sleep saing love. Isshi think his friend love someone but he clear his mind for school festival, he take part in cosplay contest (look beautifull as a girl), talent contest where he play guitar and yamato sing and other things. This free attitude end with wish on cart and yamato see "i wish i could confess in my next life". Isshin run away, yamato chase him and confess on rooftop when isshin said hugging and this kind of things should be safe for person you love. They become a couple and consume 8 years worth love on onsen trip.
Follow the twinkling blue of the stars