Ohka Okamoto

Ohka Okamoto is a college student at the University of Tokyo as well as a childhood friend of Yamato Yamamoto. She is also the leader of the national idol group Nata De Coco under the alias "Sakura Okamoto". She decided to become a teacher and began her student teaching at Asaoka High School as Yamamoto's homeroom teacher. Ohka has upper-back length black hair that is tied into a ponytail with bangs hanging on the right side, light-colored eyes or dark-colored eyes and she wears round glasses. She occasionally wears a hat to hide her identity when out in public. Ohka acts coldly towards Yamato Yamamoto and keeps him at a distance, but only because she can't tell him that she's also in love with him because of the serious consequences it would have with both of her professions. Her idol persona is dim-witted and not very bright, but it's all an act. Ohka herself is the exact opposite: intelligent, more dignified, and studious.