KissXSis
The story begins with Keita Suminoe, a male third-year junior-high school student studying for his high school entrance exams. He is living in a home with his older twin stepsisters, Ako and Riko, who share no blood relation to him, and they help him prepare for his exams. Even though he initially dislikes himself for it, he begins to become attracted to his two step-sisters, and his two parents encourage him to eventually get married to one of them.
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Episodes
1. Start from Scratch
Keita Suminoe has trouble resisting the sexual advances of his twin stepsisters, Ako and Riko.
2. Under the Same Roof
Keita injures his hand at school and Ako and Riko compete to help him out.
3. Christmas Party
At Christmas, Keita, Ako and Riko go to a karaoke bar where they all end up getting very drunk.
4. Practice in Secret
Whilst searching through Keita's room, Ako and Riko find a dirty magazine featuring siblings in a threesome. Wondering if they may end up doing the same thing with Keita, they end up having a "practice threesome" with a dummy.
5. The Supreme Bliss Hot Spring Trip
Keita, Ako, and Riko go on a trip to a Hot Spring together.
6. Engrossed in Bewilderment
While studying together, Keita, Ako, and Riko try to block out the sounds of ecstasy coming from their parents' bedroom, and end up in a compromising position in the process.
7. Mmm! Physical Examination
As the school takes a fitness exam, Ako and Riko compete with each other for the best results. Meanwhile, Keita gets into all sorts of trouble trying to keep the other boys from spying on the girls.
8. Peach Flowers Bloom in the Rainy Season
As Keita gets soaked on a rainy day, Mikazuki invites him to her house, where he ends up having to hide from Yūzuki when she suddenly comes to visit.
9. After All!? The Eventful Home Visit
Yuuzuki visits Keita's home for a school visit, where their luck runs true to form and something embarrassing happens. Fortunately for Yūzuki both of Keita's parents are very open minded - maybe a little too open minded.
10. Going Mad in Youthful Sweat
Whilst Riko is away, Keita develops a taste for licking Ako's sweat. Later that night, Riko makes her own moves on Keita, only to also end up on the receiving end of his newly awakened fetish.
11. That Field of View, Many Colors
Keita inadvertently steps into the girl's bath at the public bathhouse and is forced to hide when Ako, Riko, and the others show up.
12. A Good Relationship Forever
Keita, Ako, and Riko play a game in which they exchange bits of tapioca between their mouthes. After realising that the tapioca juice was actually alcoholic, Ako takes advantage of Keita's drunkness, soon discovering that he possesses memories of the previous times he was intoxicated. Riko attempts to do the same, only to have it backfire on her.
13. Turning to God Only in Times of Suffering(On Air Ver.)
Episodes
