Notes:

Source
Thanks Danbooru for the translations!

Part 1(Right)
Cheerilee: Today i'm here for Keine-sensei's class~

Cheerilee: Why does that kid always write ⑨?

Cheerilee: AHH!!!
Cracks

Part 2(Left)
That night…
Keine: That ice fairy won't be in any danger~ Her IQ is so low that she won't remember unless you knock on her head.

Cheerilee: Oh… Is that so…
Cheerilee(thought): It's probably since she kept getting headbutted that her IQ is so low though…

Cheerilee: But Keine is actually a good teac…
Full moon~

Cheerilee: ~AHHHHHHH! Gensokyo is so scary!!!