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10-Nen Buri ni Saikaishita Kusogaki wa Seijun Bishōjo JK ni Seichōshiteita

10-Nen Buri ni Saikaishita Kusogaki wa Seijun Bishōjo JK ni Seichōshiteita (10年ぶりに再会したクソガキは清純美少女JKに成長していた; lit. "The Brat I Hadn't Seen in 10 Years Turned into a Pure, Beautiful High School Girl") is a Japanese light novel series written by Yuki Kanzai and illustrated by Higeneko. It originally began as a web novel posted on Kadokawa Corporation's Kakuyomu service in August 2020, before beginning publication under Overlap's Overlap Bunko imprint in October 2022; six volumes have been released as of April 2025. A manga adaptation illustrated by Kokuu Rokushou began serialization on Overlap's Comic Gardo manga website in December 2024 and has been compiled into three tankōbon volumes as of June 2026.

10-Nen Buri ni Saikaishita Kusogaki wa Seijun Bishōjo JK ni Seichōshiteita
First light novel volume cover
10年ぶりに再会したクソガキは清純美少女JKに成長していた
GenreRomantic comedy
Novel series
Written byYuki Kanzai
Published byKakuyomu
Original runAugust 10, 2020 – present
Light novel
Written byYuki Kanzai
Illustrated byHigeneko
Published byOverlap
ImprintOverlap Bunko
Original runOctober 25, 2022 – present
Volumes6
Manga
Written byYuki Kanzai
Illustrated byKokuu Rokushou
Published byOverlap
ImprintGardo Comics
MagazineComic Gardo
Original runDecember 20, 2024 – present
Volumes3

Plot

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The series follows Yuu Aritsuki, a former salaryman who has returned to his hometown of Fujinomiya, Shizuoka after ten years away. Wondering about what happened to the bratty children he used to be close to when he was younger, he encounters a beautiful high school girl who is the subject of an advance by a man. Saving her from the man's advances, she later appears at his family's coffee shop. Although he does not recognize the girl as first, she is in fact Miya Haruyama, one of those three kids. Later, he reunites with the other two girls, Mahiru Ryūshaku and Asuka Gendouji, both of whom have also grown to be high school students.

Characters

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Yuu Aritsuki (有月 勇, Aritsuki Yū)
A 28-year-old former salaryman who returned to his hometown after several years away, having been unable to cope with work demands and his company's treatment of him. When he was younger, three children from the neighborhood often played with him, which at the time he found annoying but now he felt nostalgic for. Upon returning home from Tokyo, he is reunited with Miya Haruyama, one of the kids that used to play with him in the past.
Miya Haruyama (春山 未夜, Haruyama Miya)
One of the three bratty children who used to play with Yuu when they were younger. At the time, she was the brattiest among the three, but she has since grown to become a kind and beautiful woman. She has long harbored feelings for Yuu and was happy to see him return to Fujinomiya. She calls him "Yuu-nii".
Mahiru Ryūshaku (龍石 眞昼, Ryūshaku Mahiru)
One of the three bratty children who used to play with Yuu when they were younger. At the time, she had a tomboyish appearance and tanned skin. She is now a high school student and a volleyball player, while still maintaining a tomboyish appearance.
Asuka Gendouji (源道寺 朝華, Gendōji Asuka)
One of the three bratty children who used to play with Yuu when they were younger. In contrast to the other two, she had a kind and reserved personality instead of a bratty one. She had braided hair and wore glasses. When she grew older, she had straight hair but still wears glasses.

Media

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Light novel

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Written by Yuki Kanzai, the series originally began as a web novel on Kadokawa Corporation's Kakuyomu service on August 10, 2020.[1] It was later picked up for publication by Overlap, which began publication under their Ovelap Bunko imprint and features illustrations by Higeneko. The first volume was released on October 25, 2022; six volumes have been released as of March 2025.[2]

No. Japanese release date Japanese ISBN
1October 25, 2022[3]978-4-8240-0308-9
2April 25, 2023[4]978-4-8240-0464-2
3August 25, 2023[5]978-4-8240-0580-9
4April 25, 2024[6]978-4-8240-0793-3
5September 25, 2024[7]978-4-8240-0947-0
6April 25, 2025[2]978-4-8240-1147-3

Manga

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A manga adaptation illustrated by Kokuu Rokushou began serialization on Overlap's Comic Gardo manga website on December 20, 2024.[8][9] The first volume was published on April 25, 2025;[10] three volumes have been released as of June 2026.[11]

No. Japanese release date Japanese ISBN
1April 25, 2025[12]978-4-8240-1164-0
2November 25, 2025[13]978-4-8240-1417-7
3June 20, 2026[11]978-4-8240-1700-0

See also

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References

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  1. ↑ "１０年ぶりに再会したクソガキは清純美少女JKに成長していた". Kakuyomu (in Japanese). Retrieved March 28, 2025.
  2. 1 2 "10年ぶりに再会したクソガキは清純美少女JKに成長していた 6｜オーバーラップ文庫" (in Japanese). Overlap. Retrieved March 28, 2025.
  3. ↑ "10年ぶりに再会したクソガキは清純美少女JKに成長していた 1｜オーバーラップ文庫" (in Japanese). Overlap. Retrieved March 28, 2025.
  4. ↑ "10年ぶりに再会したクソガキは清純美少女JKに成長していた 2｜オーバーラップ文庫" (in Japanese). Overlap. Retrieved March 28, 2025.
  5. ↑ "10年ぶりに再会したクソガキは清純美少女JKに成長していた 3｜オーバーラップ文庫" (in Japanese). Overlap. Retrieved March 28, 2025.
  6. ↑ "10年ぶりに再会したクソガキは清純美少女JKに成長していた 4｜オーバーラップ文庫" (in Japanese). Overlap. Retrieved March 28, 2025.
  7. ↑ "10年ぶりに再会したクソガキは清純美少女JKに成長していた 5｜オーバーラップ文庫" (in Japanese). Overlap. Retrieved March 28, 2025.
  8. ↑ 『10年ぶりに再会したクソガキは清純美少女JKに成長していた』のコミカライズ連載が開始. LN-News.com (in Japanese). December 22, 2024. Retrieved March 28, 2025.
  9. ↑ 感情を殺した少年と余命わずかな少女の悲恋譚「月下の秘め恋」など、ガルド新連載2本. Comic Natalie (in Japanese). Natasha, Inc. December 20, 2024. Retrieved March 28, 2025.
  10. ↑ 10年ぶりの再会、美少女に成長したクソガキが誰だかわかってもらえないラブコメ. Comic Natalie (in Japanese). Natasha, Inc. April 25, 2025. Retrieved April 25, 2025.
  11. 1 2 10年ぶりに再会したクソガキは清純美少女JKに成長していた 3｜ガルドコミックス情報 (in Japanese). Overlap. Retrieved May 5, 2026.
  12. ↑ 10年ぶりに再会したクソガキは清純美少女JKに成長していた 1｜ガルドコミックス情報 (in Japanese). Overlap. Retrieved March 28, 2025.
  13. ↑ 10年ぶりに再会したクソガキは清純美少女JKに成長していた 2｜ガルドコミックス情報 (in Japanese). Overlap. Retrieved November 13, 2025.
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