Drawings of Characters Studying - Hitting the Books… Or?!

Studying is an almost universal activity. You need to study if you want to learn a new skill on your own, and it’s necessary for students at any level of their education. But it can be hard to concentrate for long periods of time, so some people might daydream more than they actually work.

The "angelic" Tokoyami Towa (VTuber) isn’t exactly known for being great at studying, but what do you think about the other characters below?