Yamaguchi-kun Isn't So Bad

Japanese manga series From Wikipedia, the free encyclopedia

Yamaguchi-kun Isn't So Bad (Japanese: 山口くんはワルくない, Hepburn: Yamaguchi-kun wa Warukunai) is a Japanese manga series written and illustrated by Yuu Saiki. It has been serialized in Kodansha's shōjo manga magazine Bessatsu Friend since September 2019. A live-action film adaptation premiered in Japanese theaters in June 2026.

GenreRomance[1]
WrittenbyYuu Saiki
PublishedbyKodansha
English publisher
Quick facts 山口くんはワルくない (), Genre ...
Yamaguchi-kun Isn't So Bad
First tankōbon volume cover
山口くんはワルくない
(Yamaguchi-kun wa Warukunai)
GenreRomance[1]
Manga
Written byYuu Saiki
Published byKodansha
English publisher
ImprintKodansha Comics Betsufure
MagazineBessatsu Friend
Original runSeptember 13, 2019 – present
Volumes13
Live-action film
Directed byKentarō Moriya
Written byNatsuko Takahashi
Music byKōji Endō
StudioAsmik Ace
ReleasedJune 5, 2026 (2026-06-05)
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Characters

Asuka Yamaguchi (山口飛鳥, Yamaguchi Asuka)
Portrayed by: Kyohei Takahashi (Naniwa Danshi)[2]
Satsuki Shinohara (篠原皐, Shinohara Satsuki)
Portrayed by: Hikaru Takahashi[3]
Rion Ishizaki (石崎琳央, Ishizaki Rion)
Portrayed by: Yoji Iwase[3]
Honoka Waku (Waku Honoka)
Portrayed by: Juri Kōsaka[4]
Kotone Suzuki (Suzuki Kotone)
Portrayed by: Amane Uehara[4]
Erii Morimiya (Morimiya Erii)
Portrayed by: Hinami Mori[4]
Shio Kimura (Kimura Shio)
Portrayed by: Kanade Imahori[4]
Aki Nonaka (Nonaka Aki)
Portrayed by: Leo Nagaoka[4]
Ichi Maezawa (Maezawa Ichi)
Portrayed by: Jōtarō[4]
Ichika Teshigahara (Ichika Teshigahara)
Portrayed by: Moka Otsuka[4]
Homeroom Teacher
Portrayed by: Shigehiro Yamaguchi[4]
Yamaguchi's grandfather
Portrayed by: Shihō Harumi[4]
Yamaguchi's grandmother
Portrayed by: Eri Fuse[4]

Media

Manga

Written and illustrated by Yuu Saiki, Yamaguchi-kun Isn't So Bad started in Kodansha's shōjo manga magazine Bessatsu Friend on September 13, 2019.[5] The manga went on hiatus in June 2022 due to Saiki's childbirth,[6] and resumed on July 13, 2023.[7] Kodansha has collected its chapters into individual tankōbon volumes. The first volume was released on January 10, 2020.[8] As of June 12, 2026, thirteen volumes have been released.[9]

In July 2021, Kodansha USA announced that they have licensed the manga for English digital release in North America.[10]

Volumes

More information No., Original release date ...
No. Original release date Original ISBN English release date English ISBN
1January 10, 2020[11]978-4-06-518241-3August 10, 2021[12]978-1-63699-291-4
  1. "See Ya Tomorrow"
  2. "You Are Too Funny"
  3. "That Took You By Surprise, Didn't It?"
  4. "It Drives Me Nuts!"
2June 11, 2020[13]978-4-06-519934-3September 14, 2021[14]978-1-63699-356-0
  1. "You're Right"
  2. "What Should I Do?"
  3. "Are You Listening?"
  4. "No, It's Not That"
3October 13, 2020[15]978-4-06-520981-3October 12, 2021[16]978-1-63699-408-6
  1. "Me Too"
  2. "It Wasn't Sudden"
  3. "Something Like That"
  4. "To Be Honest"
4March 12, 2021[17]978-4-06-522481-6November 9, 2021[18]978-1-63858-260-1
  1. "I Can't Take It Anymore"
  2. "I've Been Thinking About It"
  3. "Oh My Gosh"
  4. "That's Not What I Meant"
5August 12, 2021[19]978-4-06-524289-6December 14, 2021[20]978-1-63858-668-5
  1. "It's Hard, You Know"
  2. "You're Acting Weird Today"
  3. "Say Something"
  4. "Stop"
6January 13, 2022[21]978-4-06-526438-6June 13, 2022[22]978-1-63858-903-7
  1. "It's Just A Coincidence, Isn't It?"
  2. "That's Enough!!"
  3. "I'm Not Mad"
  4. "You're Sure Anything Is Okay?"
7June 13, 2022[23]978-4-06-528023-2December 13, 2022[24]979-8-88843-113-9
  1. "You Never Know What I'm Gonna Do"
  2. "That's More Embarrassing"
  3. "You Should Let It Show"
  4. "I Can't Concentrate"
8November 13, 2023[25]978-4-06-533670-0April 30, 2024[26]979-8-88933-451-4
  1. "I Can't Keep My Anger Under Control"
  2. "You're So Cool"
  3. "I Can't Help Smiling..."
  4. "Nobody's Looking At Us"
9July 11, 2024[27]978-4-06-536187-0December 17, 2024[28]979-8-89478-304-8
  1. "Let Me Explain"
  2. "Do You Wanna Do It?"
  3. "Absolutely Not"
  4. "Be Ready For It!"
  • Special Short Episode: Let's Make This A Great New Year Together
10December 13, 2024[29]978-4-06-537800-7May 20, 2025[30]979-8-89478-524-0
  1. "That's Enough"
  2. "Same as Usual"
  3. "Isn't that Crazy?"
  4. "It's so Hard to Endure..."
11June 13, 2025[31]978-4-06-539886-9October 21, 2025[32]979-8-89478-730-5
  1. "I Wanna Go Somewhere"
  2. "That's Awesome!"
  3. "Silly!"
  4. "Plop"
12December 12, 2025[33]978-4-06-541720-1April 21, 2026[34]979-8-89830-071-5
  1. "...What Is This?!"
  2. "Hmm, I Don't Get It"
  3. "You're so Cute"
  4. "I Wanna Do It"
13June 12, 2026[9]978-4-06-543808-4——
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Live-action film

A live-action film adaptation was announced on December 6, 2025. It will be produced by Asmik Ace and directed by Saiji Yakumo, with Natsuko Takashi writing the script and Kōji Endō composing the music. Asmik Ace distributed the film and premiered in Japanese theaters on June 5, 2026.[2] The theme song is "Be My Baby" performed by Naniwa Danshi.[4]

Reception

The series was among the top five manga in the women's category of Comic CMoa [ja]'s Electronic Comic Awards 2022.[35]

References

External links

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