Newly appointed female teacher "Hitomi" is diligent but frequently makes mistakes at work, causing her to struggle with whether she should continue her career as an educator. Quietly watching over her is a shy student named "Shino," who is secretly in love with Hitomi and harbors lesbian feelings for her. Eventually gathering her courage, Shino confesses her love and shares a sweet kiss with Hitomi. However, seeing Hitomi cling to her sense of duty and professional restraint, Shino's heart aches and she runs out of the classroom. The story unfolds as it explores their forbidden romance, Hitomi's path as a teacher, and the uncertain future that lies ahead for both of them.