The Hojo family's nephew Kazuya, who has come to Tokyo to take entrance exams, is staying with him for a while. Maki welcomes him with a smile, but instead of studying, Kazuya, who has a strong sexual desire, suddenly asks her to teach him how to put on a condom... Maki, who is naturally weak against pressure, cannot refuse clearly and ends up covering his erect cock as he is told. Kazuya was so excited about his first rubber experience that he couldn't hold back... Maki desperately tries to persuade him, but her weak mind and body are overwhelmed by his forceful caresses and young, strong cock...