Yoshihata Nao

Nao is Shouta's neighbor and first love. She's known him since he was a baby and treats him like a little brother. She is unaware of his feelings for her.

Nao was a delinquent back in high school, but now is married and has a daughter, Natsuhi. She works hard to support her family and pay the debts of her lazy husband.

Lately, Nao is worried because Natsuhi doesn't seem to care about her future, so Nao asks Shouta to be her daughter's tutor and help the girl with her studies.