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    Onii-Chan Is Done For

    Alternative:Ab sofort Schwester! ; Oniichan ha Oshimai! ; お兄ちゃんはおしまい! ; ONIMAI: I'm Now Your Sister!
    AuthorNekotoufu
    Status:ongoing
    GenresComedy-School life-Seinen-Slice of life
    Updated:Dec 28, 2024 - 2:20 AM
    View:12.20m
    Rating:

    manganato.info rate : 4.62/ 5 - 2,716 votes

    Description:

    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)
    Chapter nameViewUpdated
    Chapter 95: Mahiro And The University Expedition Squad0
    Chapter 94: Mahiro And The New School Year, Once Again4.80k
    Chapter 93: Mahiro And A Special Treat11.82k
    Chapter 92: Mahiro And A Maiden's Secret13.30k
    Chapter 91: Mahiro And Marriage15.40k
    Chapter 90.9: Volume 9 Special Edition Extras2.10k
    Chapter 90.8: Mahiro And Mama (Revisited)2.20k
    Vol.9 Chapter 90.511.60k
    Chapter 90: Mahiro And Celebrating Success16.60k
    Chapter 89: Mahiro And A Home Visit17.80k
    Chapter 88.54.50k
    Chapter 88: Mahiro And Romantic Antics21.90k
    Chapter 87: Mahiro And Special Techniques21.80k
    Chapter 86.9: Minato-Kun Is Done For? 1.517.80k
    Chapter 86.5: Special: Asahi's Birthday2.80k
    Chapter 86: Mahiro And Overflowing Maternal Instincts19.80k
    Chapter 85.53.80k
    Chapter 85: Mahiro And A Stressful Reunion (Part 2)24.20k
    Chapter 84: Mahiro And A Stressful Reunion (Part 1)24k
    Chapter 83.9: Minato-Kun Is Done For? (Full Version)17.80k
    Chapter 83: Mahiro And The New Year's Tour18.80k
    Chapter 82.59.20k
    Chapter 8223.80k
    Chapter 81.9: Minato-Kun Is Done For? (Preview Version)20.90k
    Chapter 81.5: Chapter 81.510.90k
    Chapter 81: Mahiro And Conflicting Views23.40k
    Chapter 80.8: Mahiro And The Growing Gal Gang + Volume 8 Extras10.90k
    Chapter 80: Mahiro And The Secret Engagement24.90k
    Chapter 79: Mahiro And The Gal Gang26.60k
    Chapter 78.9: Mihari's Research Lab21.90k
    Chapter 78.5: The Boys And Mmorpgs21.70k
    Chapter 78: Mahiro And Mmorpgs Revisited23.90k
    Chapter 77: Mahiro And The Farewell Party28.10k
    Chapter 76.9: The Research Lab's Mihari-Chan26k
    Chapter 76.1: Blu-Ray Box Volume 2 Add-In Comic15.60k
    Chapter 76: Mahiro And A Close Call19.70k
    Chapter 75: Mahiro And The Siren's Call29.30k
    Chapter 74.99: Mihari's Birthday Venue23.50k
    Chapter 74.5: Everyone And The Blackout14k
    Chapter 74.1: Blu-Ray Box Volume 1 Add-In Comic13.60k
    Chapter 74: Mahiro And The Two's Night33.40k
    Chapter 73.1: Mahiro-Chan's Birthday Venue (2023)18.10k
    Chapter 7328.60k
    Vol.8 Chapter 72.9: The Boys Are Done For Too! + Omnibus 22-23-24 Extras3.10k
    Chapter 72: Mahiro And An Admiration33.30k
    Chapter 71.515.80k
    Chapter 71: Mahiro And The Selfie Boom35.10k
    Chapter 70.9: Volume 7 Extras15.40k
    Chapter 70.8: Mahiro And A Discussion On Cosplay16k
    Chapter 70.7: Volume 7 Special Booklet15.10k
    Chapter 70: Mahiro And An Autumn Outing36.30k
    Vol.7 Chapter 69.99: Nayutan's Birthday Venue14.50k
    Chapter 69.5: Mahiro And A Moment Of Glory14.80k
    Chapter 69: Mahiro And The Youthful Sports Festival30.50k
    Vol.7 Chapter 68.99: Momiji Birthday Venue15k
    Chapter 68: Mahiro And The World Of Hobbies35.50k
    Vol.7 Chapter 67.99: Kaede-Chan's Birthday Venue15k
    Chapter 67: Mahiro And Male Pride41.40k
    Chapter 66.5: The Boys And Changing Shifts15.60k
    Chapter 66: Mahiro And The Tempting Culture Festival (Part 2)40.30k
    Chapter 65: Mahiro And The Tempting Culture Festival (Part 1)43.40k
    Chapter: Mini Extras [Partial]32.40k
    Chapter 64: Mahiro And A Healthy Diet36.10k
    Chapter 63.5: Momiji And Panties15.60k
    Chapter 63: Mahiro And Staying Over Because Of Rain47.30k
    Chapter 62.5: Nemu And Summer Vacation15.20k
    Vol.7 Chapter 62.1: Mihari-Chan's Birthday Venue14k
    Chapter 62: Mahiro And A 2Nd Semester Debut45.30k
    Chapter 61: Mahiro And Summer Festival44.70k
    Chapter 60: Mahiro And Summer Homework43.40k
    Chapter 59: Mahiro And Spring Cleaning27.10k
    Chapter 58.52.80k
    Chapter 58: Mahiro And The Marine Ranger (Part 2)55.10k
    Chapter 57: Mahiro And The Marine Ranger (Part 1)49.90k
    Chapter 56.52.80k
    Chapter 56: Mahiro And The Battle Plan Meeting40.90k
    Chapter 55: Mahiro And A Summer Adventure54.80k
    Vol.6 Chapter 54.9: Omnibus 16-17-18 Extras12.20k
    Chapter 54.75: Mahiro And Harems13.10k
    Vol.6 Chapter 54.7: Mahiro And Harems13.10k
    Vol.6 Chapter 54.5: Mahiro And The Serene Mind8.50k
    Chapter 54: Mahiro And School Ghost Stories50.50k
    Chapter 53.521.20k
    Chapter 5351.50k
    Chapter 5244.60k
    Chapter 51.53.10k
    Chapter 5162.20k
    Chapter 50.72.80k
    Chapter 50.545.90k
    Chapter 5053.90k
    Vol.5 Chapter 49: Mahiro And Swim Classes (Part 1)55.80k
    Vol.5 Chapter 48.5: Mahiro And The Parent-Teacher Conference9.90k
    Vol.5 Chapter 48: Mahiro And Class Observation48.70k
    Vol.5 Chapter 47: Mahiro And The Sunny Girl50.10k
    Chapter 46.520.20k
    Vol.5 Chapter 46: Mahiro And Sticker Collecting45.50k
    Vol.5 Chapter 45.9: Omnibus 13-14-15 Extras12.10k
    Vol.5 Chapter 45.7: Mahiro And Visible Undergarments12.90k
    Vol.5 Chapter 45: Mahiro And The Season For New Clothes46.40k
    Vol.5 Chapter 44: Mahiro And The Secret Bbq46.50k
    Chapter 43.521.40k
    Vol.5 Chapter 43: Mahiro And Fragrances48.10k
    Vol.5 Chapter 42.6: Ex3 Special - Mahiro And A Hair's Breadth From Danger!46.10k
    Vol.5 Chapter 42.5: [Temp 1]41.3+41.7 &Amp; 42.5 &Amp; Mini Extra (2 Of 10)41.90k
    Vol.5 Chapter 42: Mahiro And The Gift Of Memories48.70k
    Chapter 41.819.50k
    Chapter 41.620.50k
    Chapter 41.521.60k
    Vol.5 Chapter 41: Mahiro And The Physical Examination49.70k
    Chapter 40.9920.90k
    Chapter 40.821k
    Chapter 40.620.40k
    Chapter 40.521.50k
    Vol.4 Chapter 40: Mahiro And An Important Secret (Part 2)53.20k
    Vol.4 Chapter 39.5: [Temp 3]37.5 &Amp; 38.5 &Amp; Mini Extra (9 Of 10)47.50k
    Vol.4 Chapter 39: Mahiro And An Important Secret57.40k
    Chapter 38.522.30k
    Vol.4 Chapter 38: Mahiro And An Appreciated Break67.90k
    Vol.4 Chapter 37.5: [Temp 2]34.5 &Amp; 36.5 &Amp; Mini Extra (6 Of 10)74.90k
    Vol.4 Chapter 37: Mahiro And A Girl's Mannerisms75.30k
    Vol.4 Chapter 36.9: Mahiro's Weekday Routine + Omnibus 10-11-12 Extras12.60k
    Chapter 36.521.40k
    Vol.4 Chapter 36: Mahiro And A Surprise80.40k
    Chapter 35.621.50k
    Vol.4 Chapter 35.5: Ex2 Special - I Am Mahiro And I Am Mihari75.20k
    Vol.4 Chapter 35.4: [Temp]32.5 &Amp; 33.5 &Amp; Mini Extra (3 Of 10).Zip67k
    Vol.4 Chapter 35: Mahiro And The Guidance Of Fortunes82.90k
    Chapter 34.521.50k
    Vol.4 Chapter 34: Mahiro And The Adult's Door82.60k
    Chapter 33.521.10k
    Vol.4 Chapter 33: Mahiro And Valentine's81.20k
    Chapter 32.522k
    Chapter 32: Mahiro And A Surprise Visit75.10k
    Chapter 31: Mahiro And Charming Bare Legs70k
    Chapter 30.921.20k
    Chapter 30.8: Asahi And Momiji26k
    Chapter 30.5: Extra61.50k
    Chapter 30: Mahiro And The Coming And Going Year65.90k
    Chapter 29: Mahiro And A Double Date65.80k
    Chapter: Mini Extras [Partial]59k
    Chapter 28: Mahiro And Girl's Night (Second Part)64.80k
    Chapter 27.5: Including Extra60.20k
    Chapter 27: Mahiro And Girl's Night (First Part)66k
    Chapter 26: Mahiro And Patissier65.20k
    Chapter 25: Mahiro And Finals63k
    Chapter 24.5: Part 1: Mahiro And Bento & Part 2: Mihari And Bento60.70k
    Chapter 24: Mahiro And Common Interests64.70k
    Chapter 23: Mahiro And The Fun Weekend63.90k
    Chapter 22.5: Ex Special59k
    Chapter 22: Mahiro And The Harsh Lesson65.90k
    Chapter 21.5: Extras62.40k
    Chapter 21: Mahiro And The First Day Of School69.40k
    Chapter 20.9: Mini Extras61.20k
    Chapter 20.5: Mihari And Dresses + Mihari (Afterwards) And Dresses64.90k
    Chapter 20: Mahiro And Middle Schoolers70.30k
    Chapter 19: Mahiro And Uploading Videos65.90k
    Chapter 18.5: Part 1: Mahiro And A "Comrade's" Return & Part 2: Mahiro And Perms64.20k
    Chapter 18: Mahiro And The Onsen Panic (Part 2)66.70k
    Chapter 17: Mahiro And The Onsen Panic (Part 1)70.10k
    Chapter 16: Mahiro And The Hair Salon67.60k
    Chapter 15.5: Siblings And Kotatsu65.30k
    Chapter 15: Mahiro And Party Night71.70k
    Chapter 14: Mahiro And A Little Adventure69.30k
    Chapter 13: Mahiro And A Wholesome Relationship72.30k
    Chapter 12.5: Mahiro And Nichiasa66.30k
    Chapter 12: Mahiro And A Lonely Night72.40k
    Chapter 11: Mahiro And Adventure74.60k
    Chapter 10.9: Mini Extras70.50k
    Chapter 10.5: Mahiro And Helping Out & Omake - Mihari And Onii-Chan73.80k
    Chapter 10: Mahiro And Special Home Security77.40k
    Chapter 9.5: Mahiro And The Two's Secret75.20k
    Chapter 9: Mahiro And A Girls's Vacation83k
    Chapter 8.5: Mahiro And Gacha79.50k
    Chapter 8: Mahiro And New Game85.50k
    Chapter 7: Mahiro And Encounters With The Unknown87.30k
    Chapter 6.5: Mahiro And Going In Circles81.40k
    Chapter 6: Mahiro And The Secret Garden86.60k
    Chapter 5.5: Mahiro And Comfort For Many Days82.70k
    Chapter 5: Mahiro And A Melancholic Day92k
    Chapter 4: Mahiro And Mmorpg97.10k
    Chapter 3: Mahiro And Identity104.40k
    Chapter 2: Mahiro And The Dangerous Mirror115.90k
    Chapter 1.5: Mahiro And The Toilet121.60k
    Chapter 1: Mahiro And The Unpleasurable Body185.60k