[Nanao] Cross You (COMIC Megastore 2011-10)

In a quiet classroom during break time, a studious boy's routine is interrupted when a playful schoolgirl decides to swap his books for something far more intimate. What begins as a cheeky confrontation over his otaku interests quickly escalates into a heated encounter between the two. As the tension peaks, the girl uses her soft, ample breasts to tease him, leading to a sensory-filled encounter where a simple study session turns into a deep, passionate connection. The relationship between the glasses-wearing student and his bold classmate takes a turn from academic curiosity to intense physical pleasure.