Toxic Daughter: Chi-chan

Yuua Hayakawa used to love playing with Chii, a mysterious girl with a murky family life who likes collecting dead insects, but it's been years since they've spoken. Now, Chii hardly ever even comes to school. One day, Chii shows up to class in beat-up gym clothes with a handful of dead bugs and starts a commotion that gives Yuua's classmate, golden boy Koudai, an idea: he's going to save Chii, and he needs Yuua's help to do it. But clean-cut exteriors don't always promise good intentions, and t...

Chii-chan is a prequel to the Doku Musume live-action movie. The manga was published in English as Toxic Daughter: Chi-chan by Kodansha USA under the Vertical Comics imprint on April 22, 2025.