How to Handle My Sassy Big Sis

How to Handle My Sassy Big Sis
First tankōbon volume cover
生意気なギャル姉を解らせる話
(Namaiki na Gal Ane o Wakaraseru Hanashi)
Manga
Written byNuma Egaki
Published byShueisha
English publisher
ImprintYoung Jump Comics
MagazineTonari no Young Jump
Original runJuly 12, 2024 – present
Volumes3

How to Handle My Sassy Big Sis (生意気なギャル姉を解らせる話, Namaiki na Gyaru Ane o Wakaraseru Hanashi; lit. "The Story of Making My Cheeky Gal Sister Understand") is a Japanese manga series written and illustrated by Numa Egaki. It was originally posted as an adult manga on Egaki's Pixiv account in November 2023, before beginning serialization on Shueisha's Tonari no Young Jump online service in July 2024. The series has been compiled into three volumes as of December 2025.

Plot

The series follows Tanuki, a high school student whose older stepsister Komaru goes to a correspondence school located next door. Due to the correspondence school's reputation, the students of Tanuki's school often mock their students. Tanuki and Komaru are not on good terms despite being family; however, his friend advises him to become closer to her, saying that her cheeky personality could give way to a cute one if she opens up to him. Thus, Tanuki decides to help Komaru show her true feelings.

Characters

Shinji Tanuki (田貫 しんじ, Tanuki Shinji)
A high school student who studies at a preparatory school in Hiroshima. He lives with his parents, while Komaru lives separately in an apartment. He and Komaru are not on good terms with each other, but he wants to understand her better. Despite their current relationship, he feels protective about her.
Komaru Konno (紺野 こまる, Konno Komaru)
Voiced by: Sumire Uesaka (PV)[1]
Shinji's older stepsister. She in her early twenties and studies at a correspondence high school next to Shinji's school. She has the appearance of a gyaru, and has developed a bratty personality, which he wants to change. She is bad with alcohol, to the point that she once had to be rescued by Shinji after she was tricked during a drinking party. She was abused and abandoned by her parents and was taken in by Shinji's family, who were her relatives. After Higashioka resigns from the school, she starts working part-time at a restaurant.
Takenaka (竹中)
Shinji's best friend, who advised him to try to become closer to Komaru so she could show her true feelings.
Hiroshi Higashioka (東岡 広, Higashioka Hiroshi)
Komaru's teacher. He is known as the Passionate Teacher because of his dedication to his work, but he got into a controversy over him making advances towards his students. He is interested in Komaru and tried making advances towards her.
Mochizuki (望月)
A member of the sports festival committee, who has obsessive feelings for Shinji.

Development

Egaki wanted to write a manga about the relationship between a rebellious older sister and an introverted younger brother. They wanted to write their own version of a romantic comedy, using their own family experiences as inspiration for the plot.[2]

Publication

The series was originally posted as an adult manga on Egaki's Pixiv account on November 29, 2023.[3] They later started serializing it on Shueisha's Tonari no Young Jump online service on July 12, 2024.[4] The first tankōbon volume was released on January 17, 2025;[5][6] a promotional video featuring Sumire Uesaka as Komaru was released to coincide with its release.[1] Three volumes have been released as of December 18, 2025.[7]

In March 2026, Yen Press announced that they had licensed the series for English publication, with the first volume set to release in September later in the year.[8]

No. Original release date Original ISBN English release date English ISBN
1January 17, 2025[5]978-4-08-893507-2September 22, 2026[9]979-8-85-542903-9
2September 19, 2025[10]978-4-08-893753-3——
3December 18, 2025[7]978-4-08-894079-3——
4May 19, 2026[11]978-4-08-894258-2——

Reception

The series was nominated for Niconico's second Manga General Election in 2025, placing second in the Heart-Pounding category.[12]

References

  1. ^ a b "「生意気なギャル姉を解らせる話」1巻、上坂すみれ出演のPVも公開". Natalie (website) (in Japanese). Natasha, Inc. January 17, 2025. Retrieved November 5, 2025.
  2. ^ "口を開けば暴言！"ヤサグレ生意気ギャル"姉ちゃんと、エゴイストな陰キャ主人公の2人がぶつけ合う「それぞれの正論」【作者に聞く】". Walkerplus (in Japanese). Kadokawa Corporation. September 19, 2025. Retrieved November 5, 2025.
  3. ^ "ギャル姉わからせ" (in Japanese). Pixiv. Retrieved November 5, 2025.
  4. ^ "[第1話] 生意気なギャル姉を解らせる話". Tonari no Young Jump (in Japanese). Shueisha. Retrieved November 5, 2025.
  5. ^ a b 生意気なギャル姉を解らせる話 1 (in Japanese). Shueisha. Retrieved November 5, 2025.
  6. ^ Iwase, Kento (January 14, 2025). "「生意気なギャル姉を解らせる話」1巻の表紙と特典公開。お風呂シーンのポストカードも". Manga Watch (in Japanese). Impress Corporation. Retrieved November 5, 2025.
  7. ^ a b 生意気なギャル姉を解らせる話 3 (in Japanese). Shueisha. Retrieved November 5, 2025.
  8. ^ Mateo, Alex (March 20, 2026). "Yen Press Licenses I'm Just in a Faux BL, Servant Beast, Spy Classroom 4th Period: Blazing Fire, More Manga". Anime News Network. Retrieved March 20, 2026.
  9. ^ "How to Handle My Sassy Big Sis, Vol. 1". Yen Press. Retrieved March 25, 2026.
  10. ^ 生意気なギャル姉を解らせる話 2 (in Japanese). Shueisha. Retrieved November 5, 2025.
  11. ^ 生意気なギャル姉を解らせる話 4 (in Japanese). Shueisha. Retrieved March 19, 2026.
  12. ^ "みんなで決める！第2回・マンガ総選挙". Niconico (in Japanese). Dwango. Retrieved November 5, 2025.
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