The relationship between the siblings Aki and Sora continues to grow, even with the family constantly around. Nami on the other hand has strong feelings for her friend Kana, even though Kana actually likes Sora. This turmoil makes Sora question if he can or should continue the incestuous relation with his older sister Aki.
Episode 1
Sora continues his incestuous relationship with his sister Aki, keeping it a secret from everyone else. Meanwhile, his twin sister Nami forces him to join the Fashion Research club which her friend Kana Sumiya, who has a crush on Sora, is a part of. While Sora looks after Aki, who catches a cold during one of their secret get-togethers, Nami, who is secretly in love with Kana, asks Kana to pretend she is Sora while they practice kissing.
Episode 2
Nami persuades Kana to go on a date with Sora, but snaps when she witnesses Kana pleasuring Sora in the classroom while dodging from rain. The next day, Nami tries to confess her love to Kana, but she misinterprets it as about being best friends. Nami turns her anger towards Sora, slapping him to the floor and raping him. The two then reach to have consensual sex, with Nami ignoring Sora the next day on.
