"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.
First people growing, now people changing their gender...
Primero personas que crecen, ahora personas que cambian su género...
No começo as pessoas evoluíram 
e agora trocaram de gênero...