The Dangers in My Heart manga volume 10 features story and art by Norio Sakurai.

The day after his first kiss, Kyotaro must turn his thoughts to studying for entrance exams: He's off to study camp! The problem is he's the only boy…and they're studying at a beach house. The summer sun, swimming, and four girls is a recipe for distraction.

Edging ever closer to a social implosion, Kyotaro finds a condom someone dropped! If the girls find out, they're bound to think it's his, and everything he does will be suspect! Will this awkward parade of social mishaps ever end, or will friendships crumble at this lewd discovery?!