This is a horror manga series that is very interesting in my opinion. It begins with a high school teacher who has a hard life. He gets threatens by the principal if anymore kids skip class he will lose his job, and other such things. His life is unfair and he resents the world for being so unfair. His class is obnoxiously loud and some of them regularly skip class. Before becoming a teacher, he got a degree in psychology. To get back at the class, he hypnotizes his class and here is where it gets exciting. There are 100 unknown commandments that the teacher has created. These could be as simple as doing jumping jacks, or clapping your hands(neither of these are actually commands in the manga). If you do any of these 100 unknown commandments, then you commit suicide. As you read, many students, as you would expect, start to go a little crazy. It is entertaining and I rate this manga pretty high, not just because of the great story, but the ending is incredible. There are also different bonus times that happen, and if the class can complete them, they are released from the hypnosis. It usually means sacrificing classmates, so they are unsure whether to murder some classmates and get released from the hypnosis, or not murder anyone, but still be at risk at killing themselves if they do any of the commandments. If you are the last one alive, you are also released from the hypnosis. There are other surprising events that also make the story exciting. I think the art was great as well. It really shows how the classmates become traumatized after seeing many of their classmates and friends, die. Therefore, you really can understand how intense it would be if you were in that scenario.