... You have to study after school is over even if you already go to school to study?

[He didn't know that, that makes it ten times worse! No, a million times worse!

Goku hums a bit after that, he's actually not very interested in other worlds in a regular basis, sometimes in a conversation he may be but... He doesn't want to specifically learn or study about them.]

That's nice... But what's an "idol"?