Sex no Benkyou Shiyokka?" Kareshi ga Iru no ni Itoko kara Shojo wo Ubaware Zecchou Shidou

Struggling with her studies, Yui Nanjo enlists the help of her cousin Sou for tutoring. When her grades fail to improve, she confesses that her recent relationship with a boyfriend has been distracting her from schoolwork. Sou proposes a condition: if she passes his exams, he will allow her to continue seeing her boyfriend, but if she fails, he will personally provide her with romantic guidance. After Yui fails the test, Sou embraces her from behind and begins touching her intimately, insisting that theoretical advice is meaningless without practical experience. The situation quickly escalates as he proceeds to teach her how to reach climax through direct physical instruction.