is a Japanese manga series written and illustrated by Waka Takase. It was serialized in Shueisha's manga magazine Ultra Jump from March 2023 to May 2025.
Iori, a young man overwhelmed by work stress and grief after the loss of his beloved pet cat, suffers from insomnia and a loss of appetite. One night, he takes in a stray black cat that appears at his doorstep. The following morning, he discovers that the cat has transformed into a naked young woman, who insists on living with him. She introduces herself as Mii-chan, a playful and enigmatic figure who claims to be the same cat he sheltered. As they live together, Mii-chan's unpredictable behavior and mysterious nature disrupt Iori's routine, while her presence gradually helps him overcome his emotional struggles. Meanwhile, clues about her true identity begin to surface.
Written and illustrated by Waka Takase, Mii-chan Wants to Be Kept was serialized in Shueisha's manga magazine Ultra Jump from March 17, 2023, to May 19, 2025. Shueisha collected its chapters in four individual volumes, released from September 19, 2023, to July 17, 2025.
The series is licensed for English release in North America by Seven Seas Entertainment.