Love the voices
The voicework is simply flawless and it fits Satan perfectly to use that stupid girly voice and then turn into a monster. I am not the biggest math fan, but actually showing how to solve a weird problem like that. The animation is as interesting as ever, and I really like how the characters move in such a goofy matter. I am wondering what Satan would be doing with a kid named Leo, but I do not really care. To actually have the final punchline be relevant to the math problem is brilliant. It was pretty easy to find the literal easter eggs.