I'm living in my older brother's house while I'm a ronin... Every day I spent with my kind brother and cute sister-in-law Riko changed from that rainy day. From the first time I succumbed to the temptation of my sister-in-law's wet and see-through body and had vaginal cum shot sex, my sister-in-law seduces me like a little devil in the bathroom, right next to my brother. "I've been waiting for you for a long time...! Inside... Put it inside...!"