Atsuko Oshieda (押枝 あつこ Oshieda Atsuko) is a homeroom teacher.
Atsuko is a female with short blonde hair, purple eyes and a somewhat large bust.
Atsuko is Yoshiko Hanabatake's teacher.
Yoshio Hanabatake (Yoshiko dressed as a guy)
Atsuko fell in love with Yoshiko's disguise, but Atsuko doesn't know that Yoshio is actually Yoshiko.
- Atsuko's surname Oshieda means "push" (押) (oshi) and "branch" (枝) (eda). As Yoshiko is stupid and eats so many bananas in class even throwing the skins everywhere in the classroom