SVGAL-012 A training routine for men? This is such a waste of potential, isn’t it? Worried about our marriage after my wife grew tired of how quickly things ended, my younger sister-in-law says, You need to work on that issue, big brother! and helps me every day. Nagano Suzune

Suzu lives with her older sister and brother-in-law. Concerned about her brother-in-law’s premature ejaculation, the kind-hearted Suzu suggests using her own body to help him train and improve. With sweet, melting kisses and teasing touch, plus an awkward but devoted handjob, her alluring body pushes his self-control to the limit. Overwhelmed by his desire for his younger sister-in-law, he can no longer hold back. Before long, Suzu becomes captivated by him and starts asking for him every day, saying, You can ejaculate inside me as many times as you want!