The Hojo family's nephew Kazuya has come to Tokyo to take his entrance exams and is staying with them for a while. Maki greets him with a smile, but Kazuya, who has a strong sexual desire, doesn't study and instead comes to her to ask how to put on a condom... Maki, who is weak to pressure, doesn't refuse clearly and puts one on his erect penis as she is told. Kazuya is excited by his first condom and can't hold back... Maki desperately tries to persuade him, but her weak Kokoro and body are overwhelmed by his forceful caresses and young, strong penis...