Sister Magic

Censored Windows

VersionFinal

Released2009-03-27

Updated2026-09-14

LanguageEnglish (Opus 4.8 , Qwen3.6-27B , VNTL-Llama-3-8B v2 , Gemma-4-12B) Voice: Japanese Length: Medium (10 - 30 hours)

About Sister Magic

Sister Magic is an adult game by Nounai Kanojo. Development is finished; the final build was released on March 27, 2009. It runs on Windows. Text is in English (Opus 4.8, Qwen3.6-27B, VNTL-Llama-3-8B v2 and Gemma-4-12B) Voice: Japanese Length: Medium (10 - 30 hours), and the game is censored. The game uses hand-drawn 2D art, and you play as a male protagonist. Its main themes are gay, harem, lesbian and monster girl, with tags such as anal sex, big ass and big tits.

Game description

The main character lives with his three younger sisters, Haruna, Nano and Nonomi. They don't care about him, so they often walk around the house without clothes or come into bathroom while he is bathing. He is confused by their demeanors and suddenly starts having a dream of a girl who taunts him without notice. One day, the girl in his dream - whose name is Nerisu - suddenly appears. According to her, she is a princess of the devil world and he is a prince. This means he is the one who will take over the throne. He soon finds out that his three sisters are aware that they are actually descendants of a magician. There is only one way to stop him taking over the throne: If one of three sisters gets pregnant with his baby, he won't have the need to do so. The sisters soon curse him to not to be able to ejaculate without them. A fierce battle for him and his babies now breaks out...