Yoshida settles into his new life with Sayu, but the people around him are quick to notice the change, and very curious about what's going on.
I think you need some kind of reason 
to be nice to someone.
Zu anderen ist man nur gut, wenn man
einen bestimmten Grund dafür hat.
Penso ci debba essere una ragione
per essere gentili con gli altri.
Para mim, é preciso ter algum motivo
para ser bonzinho com os outros.
Я считаю, что раз к тебе...
кто-то добр, то это неспроста.