Read manga: Onii-Chan Is Done For

manga
Summary:

Mahiro Oyama was just a normal erotic-game loving dude...until he woke up one morning as a woman! Turns out his mad-scientist little sister, Mihari, tried out one of her new experiments on him...with a disastrous outcome, as far as Mahiro's concerned! But Mihari is as determined to study him as he is determined to go back to his shut-in, game-playing life, and one thing's for sure...life is going to get a whole lot weirder from here on out!*5th place of Tsugi Manga Awards, Category Webmanga- **Retail:** (Direct Retail From the Mangaka)!(https://i.imgur.com/0e9KPgq.png) (https://www.melonbooks.co.jp/circle/index.php?circle_id=3753)!(https://i.imgur.com/t9hf4kQ.png) (https://ec.toranoana.shop/tora/ec/cot/circle/2UPA116P847KdC6Rd687/all/)!(https://i.imgur.com/lGJEbPa.png) (https://www.dlsite.com/home/circle/profile/=/maker_id/RG40614.html) (jp)

Chapters (168)
Jul 27, 2024
Chapter 90: Mahiro And Celebrating Success
Jun 29, 2024
Chapter 89: Mahiro And A Home Visit
May 25, 2024
Chapter 88: Mahiro And Romantic Antics
Apr 27, 2024
Chapter 87: Mahiro And Special Techniques
Apr 11, 2024
Chapter 86.9: Minato-Kun Is Done For? 1.5
Mar 30, 2024
Chapter 86: Mahiro And Overflowing Maternal Instincts
Feb 25, 2024
Chapter 85: Mahiro And A Stressful Reunion (Part 2)
Jan 27, 2024
Chapter 84: Mahiro And A Stressful Reunion (Part 1)
Jan 07, 2024
Chapter 83.9: Minato-Kun Is Done For? (Full Version)
Dec 31, 2023
Chapter 83: Mahiro And The New Year's Tour
Mar 04, 2024
Chapter 82.5
Jan 11, 2024
Chapter 81.5: Chapter 81.5
Jan 11, 2024
Chapter 80.8: Mahiro And The Growing Gal Gang + Volume 8 Extras
Nov 25, 2023
Chapter 82
Nov 11, 2023
Chapter 81.9: Minato-Kun Is Done For? (Preview Version)
Nov 01, 2023
Chapter 81: Mahiro And Conflicting Views
Sep 30, 2023
Chapter 80: Mahiro And The Secret Engagement
Aug 26, 2023
Chapter 79: Mahiro And The Gal Gang
Aug 16, 2023
Chapter 78.9: Mihari's Research Lab
Aug 14, 2023
Chapter 78.5: The Boys And Mmorpgs
Jul 29, 2023
Chapter 78: Mahiro And Mmorpgs Revisited
Jun 25, 2023
Chapter 77: Mahiro And The Farewell Party
Jun 25, 2023
Chapter 76.1: Blu-Ray Box Volume 2 Add-In Comic
Jun 19, 2023
Chapter 74.5: Everyone And The Blackout
Jun 06, 2023
Chapter 76.9: The Research Lab's Mihari-Chan
Apr 30, 2023
Chapter 75: Mahiro And The Siren's Call
May 28, 2023
Chapter 76: Mahiro And A Close Call
Apr 24, 2023
Chapter 74.99: Mihari's Birthday Venue
Apr 21, 2023
Chapter: Mini Extras [Partial]
Apr 16, 2023
Chapter 73.1: Mahiro-Chan's Birthday Venue (2023)
Apr 16, 2023
Chapter 71.5
Mar 27, 2023
Chapter 74: Mahiro And The Two's Night
Apr 16, 2023
Chapter 70.7: Volume 7 Special Booklet
Apr 21, 2023
Vol.7 Chapter 69.99: Nayutan's Birthday Venue
Mar 27, 2023
Chapter 70.9: Volume 7 Extras
Mar 27, 2023
Chapter 70.8: Mahiro And A Discussion On Cosplay
Apr 21, 2023
Vol.7 Chapter 68.99: Momiji Birthday Venue
Mar 27, 2023
Chapter 69.5: Mahiro And A Moment Of Glory
Mar 26, 2023
Chapter 73
Feb 20, 2023
Chapter 72: Mahiro And An Admiration
Apr 21, 2023
Vol.7 Chapter 67.99: Kaede-Chan's Birthday Venue
Jan 18, 2023
Chapter 71: Mahiro And The Selfie Boom
Dec 13, 2022
Chapter 70: Mahiro And An Autumn Outing
Mar 27, 2023
Chapter 66.5: The Boys And Changing Shifts
Dec 13, 2022
Chapter 69: Mahiro And The Youthful Sports Festival
Oct 19, 2022
Chapter 68: Mahiro And The World Of Hobbies
Sep 11, 2022
Chapter 67: Mahiro And Male Pride
Aug 03, 2022
Chapter 66: Mahiro And The Tempting Culture Festival (Part 2)
Jun 29, 2022
Chapter 65: Mahiro And The Tempting Culture Festival (Part 1)
Mar 27, 2023
Chapter 63.5: Momiji And Panties
Jun 28, 2022
Chapter: Mini Extras [Partial]
Jun 28, 2022
Chapter 64: Mahiro And A Healthy Diet
Mar 27, 2023
Chapter 62.5: Nemu And Summer Vacation
Apr 30, 2022
Chapter 63: Mahiro And Staying Over Because Of Rain
Apr 21, 2023
Vol.7 Chapter 62.1: Mihari-Chan's Birthday Venue
Mar 28, 2022
Chapter 62: Mahiro And A 2Nd Semester Debut
Feb 28, 2022
Chapter 61: Mahiro And Summer Festival
Feb 12, 2022
Chapter 60: Mahiro And Summer Homework
Jun 19, 2023
Vol.6 Chapter 54.9: Omnibus 16-17-18 Extras
Mar 28, 2022
Chapter 59: Mahiro And Spring Cleaning
Jan 28, 2024
Vol.6 Chapter 54.5: Mahiro And The Serene Mind
Jun 19, 2023
Chapter 54.75: Mahiro And Harems
Nov 28, 2021
Chapter 58: Mahiro And The Marine Ranger (Part 2)
Jun 19, 2023
Vol.6 Chapter 54.7: Mahiro And Harems
Nov 01, 2021
Chapter 57: Mahiro And The Marine Ranger (Part 1)
Nov 01, 2021
Chapter 56: Mahiro And The Battle Plan Meeting
Aug 31, 2021
Chapter 55: Mahiro And A Summer Adventure
Jul 27, 2021
Chapter 54: Mahiro And School Ghost Stories
Jun 30, 2022
Chapter 53.5
Jun 27, 2021
Chapter 53
Jun 27, 2021
Chapter 52
Apr 25, 2021
Chapter 51
Jan 11, 2024
Vol.5 Chapter 48.5: Mahiro And The Parent-Teacher Conference
Apr 18, 2021
Chapter 50.5
Apr 07, 2021
Chapter 50
Feb 25, 2021
Vol.5 Chapter 49: Mahiro And Swim Classes (Part 1)
Feb 18, 2021
Vol.5 Chapter 48: Mahiro And Class Observation
Dec 27, 2020
Vol.5 Chapter 47: Mahiro And The Sunny Girl
Jun 19, 2023
Vol.5 Chapter 45.9: Omnibus 13-14-15 Extras
Jun 30, 2022
Chapter 46.5
Jun 19, 2023
Vol.5 Chapter 45.7: Mahiro And Visible Undergarments
Nov 29, 2020
Vol.5 Chapter 46: Mahiro And Sticker Collecting
Nov 09, 2020
Vol.5 Chapter 45: Mahiro And The Season For New Clothes
Oct 05, 2020
Vol.5 Chapter 44: Mahiro And The Secret Bbq
Jun 30, 2022
Chapter 43.5
Sep 01, 2020
Vol.5 Chapter 43: Mahiro And Fragrances
Aug 31, 2020
Vol.5 Chapter 42.6: Ex3 Special - Mahiro And A Hair's Breadth From Danger!
Aug 31, 2020
Vol.5 Chapter 42.5: [Temp 1]41.3+41.7 & 42.5 & Mini Extra (2 Of 10)
Jul 26, 2020
Vol.5 Chapter 42: Mahiro And The Gift Of Memories
Jun 30, 2022
Chapter 41.8
Jun 30, 2022
Chapter 41.6
Jun 30, 2022
Chapter 41.5
Jun 28, 2020
Vol.5 Chapter 41: Mahiro And The Physical Examination
Jun 30, 2022
Chapter 40.99
Jun 30, 2022
Chapter 40.8
Jun 30, 2022
Chapter 40.6
Jun 30, 2022
Chapter 40.5
May 25, 2020
Vol.4 Chapter 40: Mahiro And An Important Secret (Part 2)
May 14, 2020
Vol.4 Chapter 39.5: [Temp 3]37.5 & 38.5 & Mini Extra (9 Of 10)
May 06, 2020
Vol.4 Chapter 39: Mahiro And An Important Secret
Jun 30, 2022
Chapter 38.5
Apr 09, 2020
Vol.4 Chapter 38: Mahiro And An Appreciated Break
Mar 02, 2020
Vol.4 Chapter 37.5: [Temp 2]34.5 & 36.5 & Mini Extra (6 Of 10)
Feb 29, 2020
Vol.4 Chapter 37: Mahiro And A Girl's Mannerisms
Jun 19, 2023
Vol.4 Chapter 36.9: Mahiro's Weekday Routine + Omnibus 10-11-12 Extras
Jun 30, 2022
Chapter 36.5
Jan 30, 2020
Vol.4 Chapter 36: Mahiro And A Surprise
Jun 30, 2022
Chapter 35.6
Jan 19, 2020
Vol.4 Chapter 35.5: Ex2 Special - I Am Mahiro And I Am Mihari
Jan 19, 2020
Vol.4 Chapter 35.4: [Temp]32.5 & 33.5 & Mini Extra (3 Of 10).zip
Dec 29, 2019
Vol.4 Chapter 35: Mahiro And The Guidance Of Fortunes
Jun 30, 2022
Chapter 34.5
Dec 01, 2019
Vol.4 Chapter 34: Mahiro And The Adult's Door
Jun 30, 2022
Chapter 33.5
Oct 29, 2019
Vol.4 Chapter 33: Mahiro And Valentine's
Jun 30, 2022
Chapter 32.5
Sep 29, 2019
Chapter 32: Mahiro And A Surprise Visit
Sep 29, 2019
Chapter 31: Mahiro And Charming Bare Legs
Jun 30, 2022
Chapter 30.9
Mar 28, 2022
Chapter 30.8: Asahi And Momiji
Sep 29, 2019
Chapter 30.5: Extra
Sep 29, 2019
Chapter 30: Mahiro And The Coming And Going Year
Sep 29, 2019
Chapter 29: Mahiro And A Double Date
Sep 29, 2019
Chapter: Mini Extras [Partial]
Sep 29, 2019
Chapter 28: Mahiro And Girl's Night (Second Part)
Sep 29, 2019
Chapter 27.5: Including Extra
Sep 29, 2019
Chapter 27: Mahiro And Girl's Night (First Part)
Sep 29, 2019
Chapter 26: Mahiro And Patissier
Sep 29, 2019
Chapter 25: Mahiro And Finals
Sep 29, 2019
Chapter 24.5: Part 1: Mahiro And Bento & Part 2: Mihari And Bento
Sep 29, 2019
Chapter 24: Mahiro And Common Interests
Sep 29, 2019
Chapter 23: Mahiro And The Fun Weekend
Sep 29, 2019
Chapter 22.5: Ex Special
Sep 29, 2019
Chapter 22: Mahiro And The Harsh Lesson
Sep 29, 2019
Chapter 21.5: Extras
Sep 29, 2019
Chapter 21: Mahiro And The First Day Of School
Sep 29, 2019
Chapter 20.9: Mini Extras
Sep 29, 2019
Chapter 20.5: Mihari And Dresses + Mihari (Afterwards) And Dresses
Sep 29, 2019
Chapter 20: Mahiro And Middle Schoolers
Sep 29, 2019
Chapter 19: Mahiro And Uploading Videos
Sep 29, 2019
Chapter 18.5: Part 1: Mahiro And A "comrade's" Return & Part 2: Mahiro And Perms
Sep 29, 2019
Chapter 18: Mahiro And The Onsen Panic (Part 2)
Sep 29, 2019
Chapter 17: Mahiro And The Onsen Panic (Part 1)
Sep 29, 2019
Chapter 16: Mahiro And The Hair Salon
Sep 29, 2019
Chapter 15.5: Siblings And Kotatsu
Sep 29, 2019
Chapter 15: Mahiro And Party Night
Sep 29, 2019
Chapter 14: Mahiro And A Little Adventure
Sep 29, 2019
Chapter 13: Mahiro And A Wholesome Relationship
Sep 29, 2019
Chapter 12.5: Mahiro And Nichiasa
Sep 29, 2019
Chapter 12: Mahiro And A Lonely Night
Sep 29, 2019
Chapter 11: Mahiro And Adventure
Sep 29, 2019
Chapter 10.9: Mini Extras
Sep 29, 2019
Chapter 10.5: Mahiro And Helping Out & Omake - Mihari And Onii-Chan
Sep 29, 2019
Chapter 10: Mahiro And Special Home Security
Sep 29, 2019
Chapter 9.5: Mahiro And The Two's Secret
Sep 29, 2019
Chapter 9: Mahiro And A Girls's Vacation
Sep 29, 2019
Chapter 8.5: Mahiro And Gacha
Sep 29, 2019
Chapter 8: Mahiro And New Game
Sep 29, 2019
Chapter 7: Mahiro And Encounters With The Unknown
Sep 29, 2019
Chapter 6.5: Mahiro And Going In Circles
Sep 29, 2019
Chapter 6: Mahiro And The Secret Garden
Sep 29, 2019
Chapter 5.5: Mahiro And Comfort For Many Days
Sep 29, 2019
Chapter 5: Mahiro And A Melancholic Day
Sep 29, 2019
Chapter 4: Mahiro And Mmorpg
Sep 29, 2019
Chapter 3: Mahiro And Identity
Sep 29, 2019
Chapter 2: Mahiro And The Dangerous Mirror
Sep 29, 2019
Chapter 1.5: Mahiro And The Toilet
Sep 29, 2019
Chapter 1: Mahiro And The Unpleasurable Body