Akairo no Utage

Akairo no Utage is a Japanese erotic visual novel which deals with themes of demonic possession and reincarnation.

The protagonist is Yuuya Kisugi, a man who is tasked with taking care of his brother Keisuke's mansion while he is away on a business trip. The other residents of the mansion are Keisuke's wife Aika and her sister Kurumi, the maid Sumire, and a mysterious woman named Aoi. While secretly harboring feelings for Aika, Yuuya begins to have strange dreams that make him feel as if something dark within him is begging to be released.

The player's decisions throughout the game may cause Yuuya to become more awakened to the darkness within him, increasing his awakening level. A higher awakening level will cause Yuuya to act more brutal towards the heroines in the game. The game features multiple routes and endings.