Cirno is secretly a genius

but she hides it so she isn't asked to help with homework.

Discuss.

I only have Keine as a teacher so I don't have to deal with youkai. I don't need this stupid ass dumb shit cow-thing teacher to teach me anything. Why should I? I have a certified IQ of 110 and this loser fucked up her whole life so bad she's stuck as teachers for fucking fairies. She doesn't even know shit about the subject she's teaching except for boring history about a village no one cares about. If she knew anything about it, she'd be getting paid hundreds of millions of yen to do it right.