ONIMAI: I’m Now Your Sister!

Onii-chan wa Oshimai!
お兄ちゃんはおしまい！
ko
오빠는 끝! (official)
Info Covers Related (6) News

Side Story

Cover image for the manga called Onii-chan wa Oshimai! Tokubetsu-hen
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Onii-chan wa Oshimai! Tokubetsu-hen
manga
2018
78 AniList 78
Specials chapters of Onii-chan wa Oshimai! bundled with the mini dramas CD sold during Comic Market.

Side Story

Cover image for the manga called Onii-chan wa Oshimai! Tanjoubi
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Onii-chan wa Oshimai! Tanjoubi
manga
2022
75 AniList 75
Includes: 1) まひろちゃんお誕生日会場 (2022 March 6) 2) みはりちゃんお誕生日会場 (2022 April 22) 3) あさひお誕生日会場 (2022 May 5) 4) みよちゃんお誕生日会場 (2022 June 18) 5) かえでちゃんお誕生日会場 (2022 September 12) 6) もみじお誕生日会場 (2022 October 20) 7) なゆたんお誕生日会場 (2022 November 23) 8) まひろちゃんお誕生日会場 2023 (2023 March 6) 9) みはりちゃんお誕生日会場2023 (2023 April 22)

Side Story

Cover image for the manga called Onii-chan wa Oshimai! 7-kan: Tokusouban Shousasshi
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Onii-chan wa Oshimai! 7-kan: Tokusouban Shousasshi
manga
2023
77 AniList 77
A booklet bundled with the Onii-chan wa Oshimai! volume 7 special edition.

Side Story

Cover image for the manga called Onimai Fukudoku Hon: Mihari no Kenkyuushitsu
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Onimai Fukudoku Hon: Mihari no Kenkyuushitsu
manga
2023
76 AniList 76

Side Story

Cover image for the manga called Minato-kun wa Oshimai?
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Minato-kun wa Oshimai?
manga
2023
79 AniList 79
Minato, one of the boys' duo, dresses up as a woman in this side story. Note: Released at Comiket 103, 105 and 107.

Spin-off

Cover image for the manga called Oniichan wa Oshimai! Koushiki Anthology Comic
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Oniichan wa Oshimai! Koushiki Anthology Comic
manga
2021
Publishers:
73 MangaUpdates 60 AniList 77 MyAnimeList 75
Anime-PlanetKitsuShikimoriAnime News Network
An anthology comic of Onii-chan wa Oshimai! by various mangaka.