NRPD-011 - Affair with my best friend's mom at a hot spring

Kyohei is disgusted by his mother's promiscuous lifestyle and finds comfort in his best friend Shota's mother, Ryoko. After another incident at home, he runs away to Shota's place. Ryoko invites him on a hot spring trip, and he eagerly accepts, seizing the chance to be alone with his secret crush.