[Touhou MMD] Cirno’s Perfect Math Class

Comment please~! Nu-uh This is not a pure dance video, more like a PV I wish math is always this easy, really. I used to be good at math until they start adding letters into the lesson (symbols, etc.) And to think that national exam is only a few days away... ( UPDATE: Looks like I failed miserably today at the math test T_T; ) (UPDATE AGAIN: 4.2 out of 10 for math!? Oh, come used to have unbreakable streak of 10s for math at 6th grade!) Cirno-sensei!! Please be our teacher!!