VENX-279 As a NEET virgin with low specs, my high-spec, beautiful brother's wife gives me middle-out lectures in an incredibly lucky first-time sex. Tachibana Kyoka.

Kenta, a repeat exam taker, is to receive intensive exam preparation from his sister who graduated from a prestigious university. He thought he could finally relax, but for Kenta, who has dedicated his youth to studying, his sister's beauty was too stimulating. Her smiling profile next to him, her soft body pressed against his, and the glimpse of her cleavage... Kenta couldn't even focus on studying; all he could do was barely suppress his urges. Noticing this, his sister said, 'Before we study, let me teach you this,' and started pushing herself onto him... The dream first experience begins with his beautiful, stylish, and highly educated sister guiding him step by step!