Succubus Cuckolding Story ~Reverse Cuckolding Fetish Between You and Me~

You play as Taro, a young man dating a self-proclaimed succubus named Arisu. To maintain their relationship, Taro must prove his sexual prowess—Arisu has suggested he be intimate with her friend Kafu to strengthen himself. As Taro's power grows, complications emerge when Kafu becomes interested in him, and Arisu's behavior becomes increasingly strange. The story explores what happens when a seemingly straightforward arrangement spirals into unexpected emotional entanglements.