KissXSis - S01

After Keita Suminoe's mother passed away, his father quickly remarried, bringing two step-sisters into Keita's life: twins Ako and Riko. But from their very first meeting, the girls were overcome by an incestuous love for their younger brother, sparking a lifelong rivalry for his heart. Now at the end of middle school, Keita studies hard so he can attend Ako and Riko's high school. While doing so, he has to sort out his conflicting feelings for his sisters and either turn them down or give in to their intimate advances. Luckily, or maybe unluckily for Keita, his sisters aren't the only women who want him, and there's no telling when temptation will get the better of him too.