is a Japanese four-panel manga series written and illustrated by Toshiya Wakabayashi. It originally began publication as a webcomic published on the author's Pixiv account in October 2018. It later began serialization on Kodansha's "Twi4" Twitter account and "Saizensen" website in April 2019. A live-action television drama adaptation premiered in February 2025.








Media.
Manga.
Written and illustrated by Toshiya Wakabayashi, "Happy Kanako's Killer Life" originally began publication as a webcomic on the author's Pixiv account on October 29, 2018. It later began serialization on Kodansha's "Twi4" Twitter account and "Saizensen" website on April 26, 2019. Its chapters have been compiled into seven "tankōbon" volumes as of March 2023. The series is licensed in English by Seven Seas Entertainment.
Drama.
A live-action television drama adaptation was announced on May 7, 2024. The drama is directed by Tsutomu Hanabusa and stars Non and Taisuke Fujigaya in lead roles. It streamed on DMM TV on February 28, 2025.
Reception.
The series was ranked fifteenth in Honya Club's Nationwide Bookstore Employees' Recommended Comics of 2020.