A world where people have lost their sexual desire. But one day, my sister took it back…
His younger sister, Kazusa, who is popular as the prince of the school, is hospitalized due to illness. Since then, she has been acting strange.
Humanity abandons the beastly emotion of sexual desire and lives in peace. However, my sister had regained the sexual desire that most people should have lost. The fate of the brother who was attacked by his sister who could no longer control the desire he felt for the first time…
A story where she is cuckolded by her sister, a story where her urethra is tortured by two girls, etc.
