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.
Haruka Shiraishi
Ruri "Hibari" Hibarigaoka (voice)
Hibiku Yamamura
Hibiki Hagyuu (voice)
Kiyono Yasuno
Botan Kumegawa (voice)
Mayu Yoshioka
Ren "Len" Ekoda (voice)
Yumiri Hanamori
Anne "Hanako" Hanakoizumi (voice)
Chitose Morinaga
Timothy / Tsubaki Sayama (voice)
Yumi Hara
Kodaira-sensei (voice)
Yuko Gibu
Sakura Hanakoizumi / Hibiki's mother / Housekeeper (voice)
Ami Koshimizu
Saginomiya-sensei (voice)
Satomi Arai
Umebaba-san (voice)
WATATEN!: an Angel Flew Down to Me
Minami-ke
Aharen-san wa Hakarenai
YuruYuri: Happy Go Lily
Tonari no Seki-kun: The Master of Killing Time
Place to Place
Seitokai Yakuindomo
Seton Academy: Join the Pack!
Handa-kun
A Couple of Cuckoos
Aiura
Please Tell Me! Galko-chan