Azuma Sanae

The nurse in charge of the main character. She is a kind, but firm and reliable older sister. Although she is unaware of it, she sees her deceased brother who died of an illness in the main character.

She views the main character as a replacement for her brother, and when he confesses his feelings to her, she readily accepts his proposal.

She has big H-cup breasts. She has little knowledge about sex. She is a virgin.