Shota and Nao maintain a secret, risky arrangement of masturbating together in hidden areas of their school to satisfy their urges. Bored with the predictability of their routine, Shota convinces a reluctant Nao to escalate their encounters to full sexual intercourse. Despite the constant threat of discovery by their peers, the pair finds an unprecedented thrill in their forbidden acts, leading Shota to realize the superior pleasure of intimacy over mere stimulation.