Demon Slayer: I Am Muhan's Wife

Tsurumi Huairou has felt that he is incompatible with this world since he became conscious. In her memory, she knew the vocabulary, medical knowledge, and entertainment games that no one else had ever learned or heard. She was like a human from other advanced worlds who somehow came here. Until the young Tsurumi Huairou married the sickly Oniitsuji Mumei. A voice that only she could hear echoed in her ears: the system was activated. This system will serve the host wholeheartedly. Please rest assured that the host can rewrite all this. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.