Nami Hinata, a girl who is ordinary in every aspect, comes to school pretending to be a girl who doesn't go to school, but finds that the school is full of weirdos. The super optimistic girl Kafuka Fuura is optimistic and positive no matter what she sees; the rigid and hard-line girl Chisato Kizu is entangled with Nami on the question of "why does a girl who doesn't go to school come to school"; even the homeroom teacher Nozomu Itoshiki doesn't attend classes and is busy committing suicide. Nami, an ordinary girl who always thinks that "the word ordinary is definitely not a good word", has become an outlier in the classroom. Indeed, under the leadership of Nozomu Itoshiki, a super negative teacher known as "Mr. Despair", all 32 people in the second-year class are a little abnormal. Nozomu, whose catchphrase is "I'm desperate! I'm awakened to the world of xx", and the hilarious school comedy that lives with the students begins again.