The Ramparts of Ice

The Ramparts of Ice
First tankōbon volume cover, featuring Koyuki Hikawa
氷の城壁
(Koori no Jyōheki)
GenreRomantic comedy[1]
Manga
Written byKōcha Agasawa
Published by
English publisher
  • NA: MangaPlaza
ImprintJump Comics
Original runJanuary 10, 2020 – April 28, 2022
Volumes14
Anime television series
Directed byMankyū
Written byYasuhiro Nakanishi
Music by
  • Kanade Sakuma
  • Natsumi Tabuchi
StudioStudio Kai
Licensed byNetflix (streaming)
Original networkJNN (TBS)
Original run April 2, 2026 – scheduled

The Ramparts of Ice (Japanese: 氷の城壁, Hepburn: Koori no Jyōheki) is a Japanese web manga series written and illustrated by Kōcha Agasawa. First published as a webtoon, it was later serialized through Line's Line Manga digital service from January 2020 to April 2022. Shueisha published its chapters in 14 tankōbon volumes from July 2023 to February 2025. An anime television series adaptation produced by Studio Kai is set to premiere in April 2026.

Synopsis

Koyuki Hikawa has trouble interacting with others, instead preferring to keep her distance and spend her time alone. However, when she meets Minato Amamiya, he suddenly starts trying to close the distance between them.

Characters

Koyuki Hikawa (氷川 小雪, Hikawa Koyuki)
Voiced by: Anna Nagase[2]
Miki Azumi (安曇 美姫, Azumi Miki)
Voiced by: Fūka Izumi[2]
Minato Amamiya (雨宮 湊, Amamiya Minato)
Voiced by: Shōya Chiba[2]
Yota Hino (日野 陽太, Hino Yōta)
Voiced by: Satoshi Inomata[2]
Tsubasa Igarashi (五十嵐 翼, Igarashi Tsubasa)
Voiced by: Chiaki Kobayashi[3]
Tsukiko Shimojima (霜島月子, Shimojima Tsukiko)
Voiced by: Sakura Shinfuku[4]

Media

Manga

Kōcha Agasawa began publishing The Ramparts of Ice as a self-published webtoon for about two years, before being serialized through Line's Line Manga digital service from January 10, 2020, to April 28, 2022.[5][6][7] Shueisha published the manga in print, under its Jump Comics imprint, with 14 tankōbon volumes released from July 4, 2023, to February 4, 2025.[8][9][10]

The series is published in English on NTT Solmare's MangaPlaza website.[11]

Volumes

No. Japanese release date Japanese ISBN
1July 4, 2023[12]978-4-08-883544-0
2July 4, 2023[12]978-4-08-883582-2
3August 4, 2023[13]978-4-08-883583-9
4September 4, 2023[14]978-4-08-883648-5
5October 4, 2023[15]978-4-08-883649-2
6November 2, 2023[16]978-4-08-883650-8
7December 4, 2023[17]978-4-08-883750-5
8January 4, 2024[18]978-4-08-883751-2
9February 2, 2024[19]978-4-08-883752-9
10March 4, 2024[20]978-4-08-883753-6
11May 2, 2024[21]978-4-08-883754-3
12July 4, 2024[22]978-4-08-883755-0
13September 4, 2024[23]978-4-08-884198-4
14February 4, 2025[10]978-4-08-884404-6

Anime

In January 2025, it was announced that the manga will receive an anime television series adaptation.[24][25] It will be produced by Studio Kai and directed by Mankyū, with series composition by Yasuhiro Nakanishi, characters designed by Miki Ogino, and music composed by Kanade Sakuma and Natsumi Tabuchi. The series is set to premiere on April 2, 2026, on TBS and its affiliates.[2][26] The opening theme song is "Tōmei" (透明; 'Invisible'), performed by Novelbright, while the ending theme song is "Sakasama" (逆様; 'Upside Down'), performed by Polkadot Stingray.[4] Netflix will stream the series globally.[26]

Reception

Before its serialization, The Ramparts of Ice received a special prize at the "Shueisha Shōjo Manga Grand Prix Powered by Line Manga Indies 2018 Summer".[27] It ranked nineteenth in the web category at the seventh Next Manga Awards in 2021.[28] It ranked first in the Comic C'moa Annual Ranking's josei manga category in 2022.[29] It ranked second in AnimeJapan's sixth "Most Wanted Anime Adaptation" poll in 2023.[30] It was nominated for the 69th Shogakukan Manga Award in 2023.[31][a] It ranked fifteenth, along with The JoJoLands, on Takarajimasha's Kono Manga ga Sugoi! list of best manga of 2024 for male readers.[32] It was ranked sixth in the Nationwide Bookstore Employees Recommended Comics of 2024 list.[33] The series won the 2024 Vertical Manga Award in the completed comic category.[34]

See also

Notes

  1. ^ Unlike previous years, the nominees are not divided into categories in the 2023 award.

References

  1. ^ Komatsu, Mikikazu (September 29, 2025). "The Ramparts of Ice Anime Unveils April 2026 Premiere, Teaser Trailer & Visual, Main Voice Cast". Crunchyroll News. Archived from the original on March 12, 2026. Retrieved March 12, 2026.
  2. ^ a b c d e Pineda, Rafael Antonio (September 28, 2025). "The Ramparts of Ice TV Anime's Teaser Unveils Cast, Staff, April 2026 Debut". Anime News Network. Archived from the original on September 29, 2025. Retrieved September 29, 2025.
  3. ^ Mateo, Alex (February 4, 2026). "The Ramparts of Ice Anime Casts Chiaki Kobayashi". Anime News Network. Archived from the original on February 4, 2026. Retrieved February 4, 2026.
  4. ^ a b Pineda, Rafael Antonio (February 27, 2026). "The Ramparts of Ice Anime Reveals Cast Member, Theme Song Artists". Anime News Network. Archived from the original on February 27, 2026. Retrieved February 27, 2026.
  5. ^ Ishida, Kanta (November 18, 2023). "'The Ramparts of Ice' Is a Game Changer of Webtoon-Origin Manga". The Japan News. Yomiuri Shimbun. Archived from the original on December 15, 2023. Retrieved December 15, 2023.
  6. ^ Agasawa, Kōcha [@agasawa_tea] (January 10, 2020). ２年程前から WEB漫画をマイペースに更新していたのですが、この度 LINEマンガさんの方で公式連載にして頂けることになりました。 本日1/10より【毎週金曜】更新です。 https://manga.line.me/product/periodic?id=699129&t=1578582799793… 全話無料で読めますので、お時間余裕ございましたら是非 m(_ _)m どうぞよろしくお願いします〜 (Tweet) (in Japanese). Archived from the original on January 11, 2020. Retrieved December 15, 2023 – via Twitter.
  7. ^ Agasawa, Kōcha [@agasawa_tea] (April 28, 2022). 日付変わりまして 本日金曜日、 氷の城壁❄️🏰 最終話 更新されました…！ #LINEマンガ https://manga.line.me/product/periodic?id=699129… 全117話(LINEマンガの表記だと130話)、ご愛読ありがとうございました🥲🥹✨ さ、寂しい〜ーーッ (Tweet) (in Japanese). Archived from the original on April 28, 2022. Retrieved December 15, 2023 – via Twitter.
  8. ^ 全巻リスト (in Japanese). Shueisha. Archived from the original on December 16, 2025. Retrieved December 15, 2025.
  9. ^ LINEマンガ発、"アニメ化してほしい"という声も多数のwebtoon「氷の城壁」単行本化. Comic Natalie (in Japanese). Natasha, Inc. July 4, 2023. Archived from the original on July 12, 2023. Retrieved December 15, 2023.
  10. ^ a b 【2月4日付】本日発売の単行本リスト. Comic Natalie (in Japanese). Natasha, Inc. February 4, 2025. Archived from the original on February 3, 2025. Retrieved February 3, 2025.
  11. ^ "The Ramparts of Ice-Full Color". MangaPlaza. NTT Solmare. Retrieved February 20, 2026.
  12. ^ a b 【7月4日付】本日発売の単行本リスト. Comic Natalie (in Japanese). Natasha, Inc. February 19, 2018. Archived from the original on July 12, 2023. Retrieved December 15, 2023.
  13. ^ 【8月4日付】本日発売の単行本リスト. Comic Natalie (in Japanese). Natasha, Inc. August 4, 2023. Archived from the original on August 4, 2023. Retrieved December 15, 2023.
  14. ^ 【9月4日付】本日発売の単行本リスト. Comic Natalie (in Japanese). Natasha, Inc. September 4, 2023. Archived from the original on September 26, 2023. Retrieved December 15, 2023.
  15. ^ 【10月4日付】本日発売の単行本リスト. Comic Natalie (in Japanese). Natasha, Inc. October 4, 2023. Archived from the original on October 11, 2023. Retrieved December 15, 2023.
  16. ^ 【11月2日付】本日発売の単行本リスト. Comic Natalie (in Japanese). Natasha, Inc. November 2, 2023. Archived from the original on November 5, 2023. Retrieved December 15, 2023.
  17. ^ 【12月4日付】本日発売の単行本リスト. Comic Natalie (in Japanese). Natasha, Inc. December 4, 2023. Archived from the original on December 4, 2023. Retrieved December 15, 2023.
  18. ^ 【1月4日付】本日発売の単行本リスト. Comic Natalie (in Japanese). Natasha, Inc. January 4, 2024. Archived from the original on January 15, 2024. Retrieved January 17, 2024.
  19. ^ 【2月2日付】本日発売の単行本リスト. Comic Natalie (in Japanese). Natasha, Inc. February 2, 2024. Archived from the original on February 3, 2024. Retrieved February 11, 2024.
  20. ^ 【3月4日付】本日発売の単行本リスト. Comic Natalie (in Japanese). Natasha, Inc. March 4, 2024. Retrieved March 20, 2024.
  21. ^ 【5月2日付】本日発売の単行本リスト. Comic Natalie (in Japanese). Natasha, Inc. May 2, 2024. Archived from the original on May 1, 2024. Retrieved May 17, 2024.
  22. ^ 【7月4日付】本日発売の単行本リスト. Comic Natalie (in Japanese). Natasha, Inc. July 4, 2024. Archived from the original on July 5, 2024. Retrieved July 16, 2024.
  23. ^ 【9月4日付】本日発売の単行本リスト. Comic Natalie (in Japanese). Natasha, Inc. September 4, 2024. Archived from the original on September 3, 2024. Retrieved October 9, 2024.
  24. ^ 阿賀沢紅茶「氷の城壁」TVアニメ化！描き下ろしイラストで小雪たちもお祝い. Comic Natalie (in Japanese). Natasha, Inc. January 31, 2025. Archived from the original on January 31, 2025. Retrieved January 31, 2025.
  25. ^ Hodgkins, Crystalyn (January 31, 2025). "Kōcha Agasawa's The Ramparts of Ice Manga Gets TV Anime". Anime News Network. Archived from the original on January 31, 2025. Retrieved January 31, 2025.
  26. ^ a b Hodgkins, Crystalyn (January 9, 2026). "The Ramparts of Ice Anime Reveals April 2 Debut on Netflix in English-Subtitled Video". Anime News Network. Archived from the original on January 10, 2026. Retrieved January 10, 2026.
  27. ^ 「LINEマンガ インディーズ」が着実に成長している理由って？注目作のレビューも. Comic Natalie (in Japanese). Natasha, Inc. May 9, 2023. Archived from the original on June 2, 2023. Retrieved December 15, 2023.
  28. ^ Loveridge, Lynzee (August 24, 2021). "Kaiju No. 8, Oshi no Ko Win Next Manga Awards Web, Print Categories". Anime News Network. Archived from the original on August 24, 2021. Retrieved August 20, 2024.
  29. ^ 2022年一番売れたマンガは！？「コミックシーモア 年間ランキング2022」を発表！！～ランキング作品20%ポイント還元キャンペーン開催中～ (Press release) (in Japanese). NTT Solmare Corporation. December 9, 2022. Archived from the original on December 13, 2022. Retrieved December 15, 2023 – via PR Times.
  30. ^ Morrissy, Kim (March 23, 2023). "Hyperinflation Tops AnimeJapan's 'Manga We Want To See Animated' Poll". Anime News Network. Archived from the original on March 23, 2023. Retrieved December 16, 2023.
  31. ^ Hodgkins, Crystalyn (December 7, 2023). "12 Works Including Frieren, Elusive Samurai, Ya Boy Kongming! Nominated for 69th Shogakukan Manga Awards". Anime News Network. Archived from the original on December 7, 2023. Retrieved December 15, 2023.
  32. ^ Pineda, Rafael; Cayanan, Joanna (December 13, 2023). "Kono Manga ga Sugoi! Editors Unveil 2024 Rankings (Updated)". Anime News Network. Archived from the original on December 13, 2023. Retrieved December 15, 2023.
  33. ^ 橘オレコ「ホタルの嫁入り」が全国書店員が選んだおすすめコミック2024の第1位に. Comic Natalie (in Japanese). Natasha, Inc. February 1, 2024. Archived from the original on February 3, 2024. Retrieved February 4, 2024.
  34. ^ 「タテ読みマンガアワード 2024」結果発表！伊織もえ＆BE:FIRST・SHUNTOも選ぶ. Comic Natalie (in Japanese). Natasha, Inc. February 20, 2025. Archived from the original on February 20, 2025. Retrieved January 20, 2026.
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