After losing the dice game that was part of happiness training, the girls are assigned to take pictures of their "lucky items" as homework. Hanako, Hibari, and Botan try to get together over the weekend to finish their assignment, but from the moment they meet, they experience misfortune after misfortune. For some reason Hibiki seems strangely competitive, and a sleepy-looking Ren begins following them as well... Will the girls be able to complete their homework?!
The story centers around class 1-7 of Tennomifune Academy, where all the students with "bad karma" or misfortune seem to have been gathered. Hibari, a student in this class, meets the unlucky Hanako and the perennially unhealthy Botan on her first day of school, and together they try to find a way to turn their school life into a happy one.
