My Stepmom's Daughter Is My Ex Light Novel Ends at Volume 14
The series reaches its conclusion nine years after Kamishiro first posted it to Kakuyomu, closing a run that began as a web novel before Kadokawa's print editions, a ComicWalker manga, and a 2022 television anime extended it across multiple formats.
Key Facts
- My Stepmom's Daughter Is My Ex will end with its 14th volume, scheduled for release on December 1, 2026.
- Kyosuke Kamishiro began the series on the Kakuyomu website in August 2017, and Kadokawa began print publication with Takayaki's illustrations in December 2018.
- The 13th volume of My Stepmom's Daughter Is My Ex shipped in October 2025.
- Rei Kusakabe's manga adaptation has run on Kadokawa's ComicWalker since December 2019, with Udon Entertainment holding the English manga license.
- J-Novel Club licensed the light novel series in English, and an anime adaptation aired on AT-X and Tokyo MX in July 2022.
Reporting from 2 sources: Anime News Network, The Indonesian Anime Times.
The official X account for Kyosuke Kamishiro and illustrator Takayaki's My Stepmom's Daughter Is My Ex (Mamahaha no Tsurego ga Moto Kano Datta) announced on Wednesday that the light novel series will end with its 14th volume, scheduled for release on December 1, 2026. Kamishiro began the story on the Kakuyomu website in August 2017, and Kadokawa started print publication with Takayaki's illustrations in December 2018. The 13th volume shipped in October 2025. Rei Kusakabe's manga adaptation has run on Kadokawa's ComicWalker since December 2019, with Udon Entertainment handling the English manga license and J-Novel Club holding the light novel license. The novels follow Mizuto Irido and Yume Ayai, former middle school partners who become stepsiblings after their parents remarry. An anime adaptation aired on AT-X and Tokyo MX in July 2022, with Crunchyroll streaming it as it aired.
The announcement came from the series' own X account rather than a Kadokawa press release, and it promised more information in the days following the September 23, 2026, post. The final volume is set to arrive on December 1, 2026, roughly thirteen months after the 13th volume shipped in October 2025.
The property has moved through several stages. Kamishiro launched the story on Kakuyomu in August 2017, Kadokawa began print editions with Takayaki's art in December 2018, and Rei Kusakabe's manga version started on ComicWalker in December 2019. Takayaki's other illustration work includes Arifureta - From Commonplace to World's Strongest. J-Novel Club publishes the novels in English, and Udon Entertainment holds the manga license, giving the series two separate English-language homes ahead of its ending.
Synthesized by Yomimono from the 2 cited sources below, including Japanese-language reporting where cited, then editorially reviewed before publishing.
Sources
- Anime News Network News My Stepmom's Daughter Is My Ex Light Novel Series Ends With 14th Volume
- The Indonesian Anime Times Seri Novel Ringan My Stepmom’s Daughter Is My Ex Tamat di Volume Ke-14