Jisatsu Circle
Complete | Furuya Usamaru | 2002 released
It's alright. Some scenes are really good and stay in your head and the concept is a great one too. The focus of the manga is on the tragedy of a girl and less on a story. It's a nice, short read if you want to clear your head with something refreshingly disturbing.
Kyoushitsu Jibaku Club
Complete | aoisei,anajiro | 2000 released
A good read. The scenes with the classroom livestream made this story really interesting and made a young student appear so sadistic and eager for revenge. The art style is good too. The ending was a bit disappointing though.
Homunculus