​In this enticing hentai episode, Takesaka Munetaka struggles with past trauma that prevents him from enjoying intimacy. His devoted sister, Ritsuka, and cousin, Momotani Mashiro, selflessly take it upon themselves to provide him with “sex lessons” in an effort to help him heal. However, the situation becomes even more intense when his other sister, Wakana, who was the cause of his trauma, decides to get involved. As the lessons escalate, a fierce rivalry develops between the sisters as they vie for their beloved little brother’s affection. Enter a world where desires collide and sibling bonds are pushed to their limits.​