| Heisei Haizanhei Sumire-chan | |
 Firsttankōbon volume cover | |
| 平成敗残兵☆すみれちゃん | |
|---|---|
| Manga | |
| Written by | Satomi U |
| Published by | Kodansha |
| Imprint | Young Magazine KC Special |
| Magazine | Weekly Young Magazine |
| Demographic | Seinen |
| Original run | January 22, 2024 – present |
| Volumes | 5 |
 Anime and manga portal | |
Heisei Haizanhei Sumire-chan (平成敗残兵☆すみれちゃん, "The Defeated Straggler of theHeisei Era, Sumire-chan") is a Japanesemanga series written and illustrated by Satomi U. It was originally published as a one-shot in March 2023, before beginning serialization inKodansha'sWeekly Young Magazine in January 2024. The series has been compiled into five volumes as of March 2025.
The series follows Sumire Tōjō, a 31-year-old formeridol who lives alone after leaving the entertainment industry. When her cousin Yūsei encourages her to become adoujin idol and sell a self-published photobook, she is initially hesitant. However, she decides to go along with his plan given how financially lucrative it could be.
Heisei Haizanhei Sumire-chan is written and illustrated by Satomi U. It was originally published as a one-shot in March 2023,[2] before beginning serialization inKodansha'sWeekly Young Magazine in January 2024. The series has been compiled into fivetankōbon volumes as of March 2025.[3] A promotional video featuringHiromi Igarashi voicing the character Sushi Karma was released in December 2024 to promote the fourth volume.[1] A collaboration manga chapter with the manga seriesNoa-senpai wa Tomodachi was released that same month.[4]
| No. | Release date | ISBN |
|---|---|---|
| 1 | May 7, 2024[5] | 978-4-06-535215-1 |
| 2 | August 6, 2024[6] | 978-4-06-536540-3 |
| 3 | October 4, 2024[7] | 978-4-06-537269-2 |
| 4 | December 6, 2024[8] | 978-4-06-537902-8 |
| 5 | March 6, 2025[3] | 978-4-06-538915-7 |