Se-n-se-i 3

Shotaro Kondo is a senior at Yumigaura High School. From the day is homeroom teacher, Nanami Seno, saved him from being bullied; he's had feelings for her. One day, Shotaro feels the urge to kiss Nanami. His chemistry teacher witnesses the whole thing. From that point on, Shotaro's life changes, and his feelings for his teacher turn to overpowering lust...