My girlfriend drools too much! (Real-life version) Hoshino Natsuki EBWH-059

Aoi, a beautiful girl who always kept a towel to her mouth, quietly observed those around her. In the spring of his first year of university, the protagonist became interested in her after taking an elective course with her. Drawn to her elusive smile, he mustered the courage to confess his feelings and unexpectedly received a positive response, leading to a relationship. However, even after they started dating, Aoi's aloof attitude remained unchanged, and their relationship made no progress in their daily lives. Wanting to get closer to her, the protagonist invited her on a date, but there he learned an unexpected secret about her…