Onii-chan wa Oshimai! Koushiki Anthology Comic
ongoing

Onii-chan is Done For! Official Anthology Comic

Artist: Adachi Imaru
Author: Fujichika Koume
Artist: Yuuki Shinichi
Author: Cool-kyou Shinja
Author: Igarashi Masakuni
Author: 9℃
Author: Toyobayashi Sakane
Author: Ouchi Kaeru (御家かえる)
Artist: majoccoid
Author: Sorato Shunsuke
Author: Tokita Shigure
Artist: Yuuki Suzu
Author: Kawamura Taku
Author: Yuuchi Mikumi
Artist: Minamito
Author: Asazuki Norito
Author: Rucchiifu
Author: Terai Akane
Author: moricocco
Author: Nekoume
Artist: zinbei
Artist: Kakitsubata Waka
Author: Kobayashi Kina
Author: Yukimoto Shuuji
Author: Namori
Author: Tadano Natsu (タダノなつ)
Author: Okada Anmitsu
Artist: Mori Misaki
Author: Fukuoka Tarou
Author: Kamaboko RED
Author: Sasuke
Author: Hami
Author: Ronna (ろんな)
Author: Hara Yui
Author: Tomoe (TOもえ)
Author: Dobato
Author: Kometsubu
Author: Onio
Author: Tsuchii
Author: Suka
Author: Hatopopoko
Author: Hori
Author: Ceramic
Published: 2021
Type: Manga
Genderswap Comedy Anthology Slice of Life
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An anthology comic of Onii-chan wa Oshimai! by various mangaka. ___ **Volume 1** **Cover**: [Namori](https://mangadex.org/author/f049cee3-3b14-4101-8e5d-813526abb1f6) **Illustrations**: [Hara Yui](https://mangadex.org/author/60f69905-13da-42a5-9b2f-0571fcd567c2), [Shiro Manta](https://mangadex.org/author/465b6513-a230-4ce1-b2a9-5027e94e52cc), [Izumi Bell](https://mangadex.org/author/1f462d2f-2cd5-420e-9f07-b4a214ef9465) **Author list**: 1. Namori 2. Fujichika Koume 3. Tadano Natsu 4. Kawamura Taku 5. Igarashi Masakuni 6. Kakitsubata Waka 7. Asazuki Norito 8. Nekoume 9. Tsuchii 10. Mori Misaki 11. Kometsubu 12. Yuuki Shinichi 13. Kobayashi Kina 14. Yuuki Suzu 15. Suka **Volume 2** **Cover**: [Kuroda bb](https://mangadex.org/author/b8327a2b-a285-4a9a-b124-f3be558741d1) **Illustration**: [Cool-kyou Shinja](https://mangadex.org/author/9df2ffe2-1b7f-4619-93e1-c97aa0f1c0d0) **Author list**: 1. Namori 2. Hara Yui 3. Tadano Natsu 4. Igarashi Masakuni 5. Okada Anmitsu 6. Yuuchi Mikumi 7. Adachi Imaru 8. Onio 9. Minamito 10. Tomoe 11. Tsuchii 12. Terai Akane 13. Rucchiifu 14. Moricocco 15. Ouchi Kaeru 16. Nekoume 17. Cool-kyou Shinja **Volume 3** **Cover**: [Hara Yui](https://mangadex.org/author/60f69905-13da-42a5-9b2f-0571fcd567c2) **Illustration**: [Kuroda bb](https://mangadex.org/author/b8327a2b-a285-4a9a-b124-f3be558741d1) **Author list**: 1. Namori 2. Yukimoto Shuuji 3. Igarashi Masakuni 4. Suka 5. Onio 6. Sasuke 7. Toyobayashi Sakane 8. 9℃ 9. Adachi Imaru 10. Sorato Shunsuke 11. majoccoid 12. Yuuchi Mikumi 13. Hami 14. Tsuchii 15. Hori 16. Cool-kyou Shinja **Volume 4** **Cover**: [Hiroyama Hiroshi](https://mangadex.org/author/65ea7bec-52aa-4b19-aabe-5f1d41683291/hiroyama-hiroshi) **Illustration**: [Hori](https://mangadex.org/author/fe546044-b115-43ee-9ef8-2e2c81e110f7/hori) **Author list**: 1. Namori 2. Asazuki Narito 3. Tokita Shigure 4. Sorato Shunsuke 5. Fukuoka Tarou 6. Onio 7. Kamaboko RED 8. Ceramic (Seramikku) 9. Tsuchii 10. Ronna 11. Kakitsubata Waka 12. Dobato 13. Zinbei 14. Hatoboboko 15. Cool-kyou Shinja
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Chapters (84)

Chapter 84: Mahiro and Three Different Doses
daily multivitamin Mar 13, 2026
Chapter 83: Mahiro and Dieting! (Again)
daily multivitamin Feb 15, 2026
Chapter 82: Mahiro and the Mysterious Drink
daily multivitamin Dec 13, 2025
Chapter 81: Mahiro and Compensation
daily multivitamin Nov 15, 2025
Chapter 80: Mahiro and Phantom Pain
daily multivitamin Oct 31, 2025
Chapter 79: That Cow's Done For!
daily multivitamin Oct 17, 2025
Chapter 78: Mahiro, Nemu, and Finding Nemu
daily multivitamin Oct 04, 2025
Chapter 77: Self-Restraint★
daily multivitamin Sep 20, 2025
Chapter 76: Done For via Girliness Checkers
daily multivitamin Apr 05, 2025
Chapter 75: Mahiro, Mihari, and Horror Movies
daily multivitamin Mar 22, 2025
Chapter 74: Mahiro and Foreheads
daily multivitamin Mar 08, 2025
Chapter 73: Mahiro and Dark-skinned Gyarus
daily multivitamin Feb 22, 2025
Chapter 72: Mahiro and a Faint Glimmer of Hope
daily multivitamin Feb 08, 2025
Chapter 71: Momiji and the O(π) Report
daily multivitamin Jan 18, 2025
Chapter 70: Mahiro and Massages
daily multivitamin Jan 04, 2025
Chapter 69: The Boys Are Done for In-Game
daily multivitamin Dec 21, 2024
Chapter 68: Transform! PuniCura!
daily multivitamin Dec 07, 2024
Chapter 67: Everyone's Gonna Be Done For
daily multivitamin Nov 15, 2024
Chapter 66: Mahiro and Suspicions
daily multivitamin Nov 02, 2024
Chapter 65: Mahiro is a Man-Eater?
daily multivitamin Oct 19, 2024
Chapter 64: Watch★Yourself!
daily multivitamin Oct 11, 2024
Chapter 63: Onii-chan's Weaning is Done For
daily multivitamin Mar 09, 2024
Chapter 62: Mahiro and Family Jewels
daily multivitamin Mar 02, 2024
Chapter 61: Mahiro and a Special Delivery
daily multivitamin Feb 24, 2024
Chapter 60: Onii-chan Might Be a Boy
daily multivitamin Feb 17, 2024
Chapter 59: Mahiro and Ojou-samas
daily multivitamin Feb 09, 2024
Chapter 58: Mahiro and Pregnancy
daily multivitamin Feb 02, 2024
Chapter 57: Mahiro and Wedding Papers
daily multivitamin Jan 28, 2024
Chapter 56: Mahiro and Karaoke
daily multivitamin Jan 20, 2024
Chapter 55: Mahiro and Profile Sheets
daily multivitamin Jan 13, 2024
Chapter 54: Weak Against Mahiro!
daily multivitamin Jan 06, 2024
Chapter 53: Yuuta-kun and Minato-kun! The Truth Revealed!
daily multivitamin Dec 29, 2023
Chapter 52: Mihari-chan's Big Makeover
daily multivitamin Dec 23, 2023
Chapter 51: Mahiro and a Peculiar Head
daily multivitamin Dec 15, 2023
Chapter 50: Mahiro and Maid Etiquette
daily multivitamin Dec 09, 2023
Chapter 49: Sealed Away!
daily multivitamin Dec 03, 2023
Chapter 48: Onii-chan's Muscles Are Done For
daily multivitamin Mar 16, 2023
Chapter 47: Whisper! Mihari-chan
daily multivitamin Mar 15, 2023
Chapter 46: Babysitter
daily multivitamin Mar 14, 2023
Chapter 45: Mahiro and Ballet Class
daily multivitamin Mar 14, 2023
Chapter 44: Mahiro and the Lottery
daily multivitamin Mar 12, 2023
Chapter 43: Mahiro and the Complete Set
daily multivitamin Mar 11, 2023
Chapter 42: Onii-chan Energy
daily multivitamin Mar 11, 2023
Chapter 41: Mahiro and a Good Night's Rest
daily multivitamin Mar 10, 2023
Chapter 40: Mahiro, Nayuta, and Transforming Heroines
daily multivitamin Mar 10, 2023
Chapter 39: Onii-chan Wants to Return!
daily multivitamin Mar 08, 2023
Chapter 38: Mihari's Placebo
daily multivitamin Mar 08, 2023
Chapter 37: Mahiro and Clinginess
daily multivitamin Mar 07, 2023
Chapter 36: Mahiro and Schrödinger's Nayuta
daily multivitamin Mar 06, 2023
Chapter 35: Mahiro Standing Proud
daily multivitamin Mar 05, 2023
Chapter 34: Mahiro and Asahi
daily multivitamin Mar 05, 2023
Chapter 33: Rain With a Chance of Brother
daily multivitamin Mar 04, 2023
Chapter 32: Onii-chan's shoulders are done for!
Mar 24, 2023
Chapter 31: Midsummer Adventure
Mar 12, 2023
Chapter 30: Momiji's massive transformation
Jan 07, 2023
Chapter 29: Mahiro is in big trouble
Jan 20, 2023
Chapter 28: Mihari ♂
Jan 05, 2023
Chapter 27: Mahiro is a Little Girl
TSF Central Dec 28, 2022
Chapter 26: Enough Reincarnation
Jan 20, 2023
Chapter 25: Mahiro and fluffiness
Dec 25, 2022
Chapter 24: Mahiro and the Typhoon
Dec 16, 2022
Chapter 23: Mahiro and Kaede gets wet in the rain
Sep 25, 2022
Chapter 22: Mahiro and all the other "Mahiro"s
Sep 04, 2022
Chapter 21: Onii-chan wants to find it
Aug 16, 2022
Chapter 20: Mahiro and the game world
Aug 12, 2022
Chapter 19: THE medicine
Aug 03, 2022
Chapter 18: Mahiro and the Nobel show
Jul 31, 2022
Chapter 17: No Ahoge No Life
Jul 29, 2022
Chapter 16: Mahiro returns a favor
Jul 28, 2022
Chapter 15: Mahiro and the Established Norm
Ebin Dropkick :DDD Apr 23, 2023
Chapter 14: Mahiro and the Way of Men
Ebin Dropkick :DDD Apr 14, 2023
Chapter 13: Mahiro and the Love Letter
Ebin Dropkick :DDD Apr 06, 2023
Chapter 12: Mihari and her Partner
Ebin Dropkick :DDD Mar 29, 2023
Chapter 11: Mahiro and the Terrifying Sealed Room
Ebin Dropkick :DDD Mar 22, 2023
Chapter 10: Mahiro and the Imaginary
Ebin Dropkick :DDD Mar 16, 2023
Chapter 9: Mahiro and Mahiri
Ebin Dropkick :DDD Feb 13, 2023
Chapter 8: An Unforgettable Sensation
Ebin Dropkick :DDD Feb 01, 2023
Chapter 7: I wanna dress Oyama Mahiro up!
Ebin Dropkick :DDD Jan 23, 2023
Chapter 6: A letter for you
Ebin Dropkick :DDD Jan 19, 2023
Chapter 5: Secret Handsign
Apr 29, 2022
Chapter 4: Mahiro and Observing Progress
Apr 29, 2022
Chapter 3: Mahiro and Minority
Apr 29, 2022
Chapter 2: Onii-chan Wants to Give Birth!?
Apr 29, 2022
Chapter 1: Triple★Push!
Apr 29, 2022

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