Onii-chan wa Oshimai! Koushiki Anthology Comic
ongoing
By Minamito, Kobayashi Kina, Adachi Imaru
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
Chapters
90 total
Chapter 90: Onii-chan, Return to Us! NEW
Jul 31, 2026
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Chapter 89: Mentalist Momiji
Jul 11, 2026
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Chapter 88: Onii-chan and Accessorizing
Jul 11, 2026
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Chapter 87: Mother, My Savior
Jun 13, 2026
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Chapter 86: Mahiro and the Nocturnal Classmate
May 9, 2026
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Chapter 85: Mahiro's 8-Hour Timelapse Recording
Apr 11, 2026
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Chapter 84: Mahiro and Three Different Doses
Mar 14, 2026
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Chapter 83: Mahiro and Dieting! (Again)
Feb 15, 2026
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Chapter 82: Mahiro and the Mysterious Drink
Dec 13, 2025
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Chapter 81: Mahiro and Compensation
Nov 15, 2025
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Chapter 80: Mahiro and Phantom Pain
Nov 1, 2025
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Chapter 79: That Cow's Done For!
Oct 18, 2025
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Chapter 78: Mahiro, Nemu, and Finding Nemu
Oct 4, 2025
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Chapter 77: Self-Restraint★
Sep 20, 2025
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Chapter 76: Done For via Girliness Checkers
Apr 5, 2025
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Chapter 75: Mahiro, Mihari, and Horror Movies
Mar 22, 2025
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Chapter 74: Mahiro and Foreheads
Mar 8, 2025
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Chapter 73: Mahiro and Dark-skinned Gyarus
Feb 22, 2025
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Chapter 72: Mahiro and a Faint Glimmer of Hope
Feb 8, 2025
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Chapter 71: Momiji and the O(π) Report
Jan 18, 2025
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Chapter 70: Mahiro and Massages
Jan 4, 2025
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Chapter 69: The Boys Are Done for In-Game
Dec 21, 2024
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Chapter 68: Transform! PuniCura!
Dec 7, 2024
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Chapter 67: Everyone's Gonna Be Done For
Nov 16, 2024
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Chapter 66: Mahiro and Suspicions
Nov 2, 2024
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Chapter 65: Mahiro is a Man-Eater?
Oct 19, 2024
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Chapter 64: Watch★Yourself!
Oct 12, 2024
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Chapter 63: Onii-chan's Weaning is Done For
Mar 9, 2024
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Chapter 62: Mahiro and Family Jewels
Mar 2, 2024
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Chapter 61: Mahiro and a Special Delivery
Feb 24, 2024
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Chapter 60: Onii-chan Might Be a Boy
Feb 17, 2024
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Chapter 59: Mahiro and Ojou-samas
Feb 9, 2024
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Chapter 58: Mahiro and Pregnancy
Feb 3, 2024
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Chapter 57: Mahiro and Wedding Papers
Jan 28, 2024
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Chapter 56: Mahiro and Karaoke
Jan 20, 2024
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Chapter 55: Mahiro and Profile Sheets
Jan 13, 2024
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Chapter 54: Weak Against Mahiro!
Jan 6, 2024
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Chapter 53: Yuuta-kun and Minato-kun! The Truth Revealed!
Dec 29, 2023
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Chapter 52: Mihari-chan's Big Makeover
Dec 23, 2023
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Chapter 51: Mahiro and a Peculiar Head
Dec 15, 2023
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Chapter 50: Mahiro and Maid Etiquette
Dec 9, 2023
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Chapter 49: Sealed Away!
Dec 3, 2023
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Chapter 48: Onii-chan's Muscles Are Done For
Mar 16, 2023
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Chapter 47: Whisper! Mihari-chan
Mar 15, 2023
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Chapter 46: Babysitter
Mar 14, 2023
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Chapter 45: Mahiro and Ballet Class
Mar 14, 2023
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Chapter 44: Mahiro and the Lottery
Mar 12, 2023
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Chapter 43: Mahiro and the Complete Set
Mar 12, 2023
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Chapter 42: Onii-chan Energy
Mar 11, 2023
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Chapter 41: Mahiro and a Good Night's Rest
Mar 10, 2023
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Chapter 40: Mahiro, Nayuta, and Transforming Heroines
Mar 10, 2023
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Chapter 39: Onii-chan Wants to Return!
Mar 8, 2023
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Chapter 38: Mihari's Placebo
Mar 8, 2023
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Chapter 37: Mahiro and Clinginess
Mar 7, 2023
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Chapter 36: Mahiro and Schrödinger's Nayuta
Mar 6, 2023
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Chapter 35: Mahiro Standing Proud
Mar 5, 2023
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Chapter 34: Mahiro and Asahi
Mar 5, 2023
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Chapter 33: Rain With a Chance of Brother
Mar 4, 2023
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Chapter 32: Onii-chan's shoulders are done for!
Mar 24, 2023
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Chapter 31: Midsummer Adventure
Mar 13, 2023
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Chapter 30: Momiji's massive transformation
Jan 7, 2023
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Chapter 29: Mahiro is in big trouble
Jan 20, 2023
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Chapter 28: Mihari ♂
Jan 5, 2023
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Chapter 27: Mahiro is a Little Girl
Dec 28, 2022
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Chapter 26: Enough Reincarnation
Jan 20, 2023
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Chapter 25: Mahiro and fluffiness
Dec 25, 2022
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Chapter 24: Mahiro and the Typhoon
Dec 16, 2022
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Chapter 23: Mahiro and Kaede gets wet in the rain
Sep 25, 2022
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Chapter 22: Mahiro and all the other "Mahiro"s
Sep 4, 2022
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Chapter 21: Onii-chan wants to find it
Aug 16, 2022
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Chapter 20: Mahiro and the game world
Aug 12, 2022
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Chapter 19: THE medicine
Aug 3, 2022
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Chapter 18: Mahiro and the Nobel show
Jul 31, 2022
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Chapter 17: No Ahoge No Life
Jul 29, 2022
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Chapter 16: Mahiro returns a favor
Jul 29, 2022
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Chapter 15: Mahiro and the Established Norm
Apr 23, 2023
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Chapter 14: Mahiro and the Way of Men
Apr 14, 2023
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Chapter 13: Mahiro and the Love Letter
Apr 6, 2023
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Chapter 12: Mihari and her Partner
Mar 29, 2023
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Chapter 11: Mahiro and the Terrifying Sealed Room
Mar 22, 2023
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Chapter 10: Mahiro and the Imaginary
Mar 16, 2023
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Chapter 9: Mahiro and Mahiri
Feb 13, 2023
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Chapter 8: An Unforgettable Sensation
Feb 1, 2023
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Chapter 7: I wanna dress Oyama Mahiro up!
Jan 23, 2023
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Chapter 6: A letter for you
Jan 19, 2023
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Chapter 5: Secret Handsign
Apr 29, 2022
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Chapter 4: Mahiro and Observing Progress
Apr 29, 2022
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Chapter 3: Mahiro and Minority
Apr 29, 2022
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Chapter 2: Onii-chan Wants to Give Birth!?
Apr 29, 2022
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Chapter 1: Triple★Push!
Apr 29, 2022
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