Konoe is the original creator behind the multimedia franchise My One-Hit Kill Sister, which began as a Japanese web novel series. Konoe started serializing the story online in December 2019 on the user-generated novel publishing website Shōsetsuka ni Narō, where it continued until June 2023. No print version of the original novel has been released.

The story, an isekai fantasy following a weak younger brother and his overwhelmingly powerful older sister in another world, was adapted into a manga with illustrations by Kenji Taguchi. This manga adaptation began serialization in March 2020, running concurrently in Shogakukan’s online Sunday Webry platform and the seinen manga magazine Monthly Sunday Gene-X. The manga concluded in July 2023, with its chapters compiled into twelve tankōbon volumes released between June 2020 and September 2023.

An anime television series adaptation based on Konoe’s original work premiered in April 2023 and aired until June 2023. The anime was produced by the studio Gekkō and streamed worldwide by Crunchyroll. Konoe is credited as the original author of the web novel that serves as the foundation for both the manga and anime adaptations, with the manga and anime handled by separate creative teams.