The main character is invited to the house of his senior, Arisa, whom he is dating, but is left alone in her room to go shopping. As he masturbates in the underwear he finds in her room until she returns home, he is seen by her sister, Sara, a tanned gyaru! She hides behind Arisa who comes back and he does all kinds of naughty things with her sister! (Source: Mujin Comics) 1. Kanojo no Imouto wa Nikushoku kei Gyaru (彼女の妹は肉食系ギャル); COMIC Mugen Tensei 2023-05 2. Kanojo no Imouto wa Nikushoku kei Gyaru Part 2 (彼女の妹は肉食系ギャル 第2話); COMIC Mugen Tensei 2023-12 | Namespace | Tags | | :- | :- | | male | **cheating**, glasses, sole male, virginity | | female | blowjob, collar, dark skin, gyaru, hidden sex, nakadashi, schoolgirl uniform, sole female |

Chisato (♂) and Akira (♀) are childhood friends. Chisato is a gentle boy who's calm and homely, while Akira is a rough girl who's spirited and active. In an unexpected turn of events, the two of them will end up having sex. After sex, they are both tired and fall asleep. When they wake up, both of them realize they've swapped bodies!? The two of them find themselves each possessing a body that might be a better fit for each of their personalities, but what kind of future awaits these two!? (Source: [DLsite](https://www.dlsite.com/books/work/=/product_id/BJ209675.html))