On the day of the graduation ceremony, I proposed to my homeroom teacher (40 years old, unmarried) by bringing a marriage registration form.

Araki Miho (荒木美穂), 40 years old and single with zero experience with men. Her appearance is that of a baby-faced person with a gentle look, but she's quietly worried about her marriageable age. She was my high school homeroom teacher—I'm Shiina Kikkyou (椎名桔梗). That's right, "was." Just after the graduation ceremony ended, I, now officially a former student, called the teacher behind the school building and said: "Teacher, I love you. Will you marry me?" "·····Huh?" What began from there was a sweet life with an innocent, baby-faced teacher with zero experience with men. This is a story where a younger man devotedly loves his naive mentor to fulfill his one-sided love. ※Sweet and sugary, lovey-dovey. The teacher is extremely baby-faced. Doting love, yandere, and dependency are... more on the protagonist's side, I'd say?