Man, Masuda Eiji is just in a class of his own when it comes to characters and development while still maintaining a very funny tone. Like you read this or Jitsu wa with their ridiculous premises and yet he still writes better character development and realistic feeling characters than 99% of the school life manga that exist.
I also enjoy that I've seen people saying this manga is moving way too fast when it only feels that way because most manga take 100 chapters to do any kind of actual development.