A student-teacher romance.

• Summer Window Syndrome
Why doesn't Nanao want the school doctor to call her by her first name?
• On My Tiptoes in October
Nanao sees a different side of Matsumoto.
• First Love Canon
Another teacher gives Matsumoto and Nanao some advice.
• Liars' Engagement Part A + B
In the first half of "Liars' Engagement," Nanao and Matsumoto disagree over Nanao's plans for her future. In the second half, Nanao confronts Matsumoto.
• Lovesick Over My Best Friend
Focuses on two side characters.
• Chatting in Our Pajamas
Kiyo is in love with her friend Nanao, but knows that Nanao is already with someone else.
• Bursting with Impatience
Focuses on Matsumoto's feelings.

Extras:

• Summer Window Chatting at Night
• Summer Nude
• Prologue: Hidden Name
• Mental Age Limits
• Hatsumoude Syndrome
• First Time
• After Start