"We're going on the school camping trip today, huh?" Yamada is less than thrilled, but gets his fill of all he wants to do after switching bodies with Urara and thinks, "Looks like this'll be sorta fun now!" However, Urara has never really fit in with the other girls.
Not to mention, you asked if 
Yamada could join our group.
Warum sollte Yamada nur
unbedingt in unsere Gruppe?
Por cierto, Yamada pidió 
unirse a nuestro grupo.
Por cierto, Yamada ha pedido 
unirse a nuestro grupo.
Et tu as insisté pour que Yamada
soit dans ce groupe…
Sai, Yamada ha chiesto
 di unirsi a questo gruppo.
Sem mencionar que o Yamada 
pediu para entrar no nosso grupo.
А ещё ты попросила взять
Ямаду в нашу группу.