is a Japanese manga series written and illustrated by Byà «. It was serialized on Burg Hamburg Burg's web media Omocoro from July 2018 to July 2024, with five volumes released by Shogakukan between September 2021 and August 2024. An anime television series adaptation produced by C-Station is scheduled to premiere in July 2026.
Mechako is the leader of the Kaikigumi, a supernatural organization that she is trying to revive. When the unnamed protagonist, a man who is easily scared, encounters her, he becomes involved in the organization as well.
Byà « serialized the series on Burg Hamburg Burg's web media Omocoro for 53 chapters between July 19, 2018, and July 12, 2024. Shogakukan compiled the chapters into five volumes released between September 29, 2021, and August 29, 2024.
An anime television series adaptation was announced on October 11, 2025. The series is produced by C-Station and directed by Yutaka Hirata, featuring scripts by Mutsumi Ito, character designs by Yoshimitsu Yamashita, and music by Akiyuki Tateyama. The series will be narrated by Shigeru Chiba. It is set to premiere on July 5, 2026 on TBS and its affiliates.