"Everyone looks pretty grown-up after summer break"
Shinpachi finds himself in stuck in a completely different world.  That is when the Shinsengumi sends a berserk Yamazaki to pick up the bewildered Shinpachi.
Gin-san, Kagura-chan, and everyone else I knew changed into completely different people.
Gin-san, Kagura-chan, y todos los demás que conocía cambiaron en personas completamente diferentes.