Onii-chan wa Oshimai

Onii-chan is done for; お兄ちゃんはおしまい

Author(s): Nekotoufu

Artist(s): Nekotoufu

Type: Manga

Genre(s): Comedy , Gender Bender , Sci-fi , Seinen , Slice of Life

Status: Ongoing

Views: 152918

Views rank: 1831/70397

Subscribers rank: 5977/70397

4.4/5 stars (3269 votes)

Summary

Self Published WebManga Presented by Grinp-Circle

A TS Slice of Life Comedy about a brother who was transformed into a girl by his little sister's strange drugs.

RAW : https://www.pixiv.net/member_illust.php?id=159912

Read Onii-chan wa Oshimai on MangaHasu.se

Onii-chan wa Oshimai Chapters

Name chapter		Date updated
Onii-chan wa Oshimai Chapter: Mini Extras [partial]		Sep 28, 2019
Onii-chan wa Oshimai Chapter 91: Mahiro And Marriage		Aug 31, 2024
Onii-chan wa Oshimai Vol 9 Chapter 90.5		Aug 17, 2024
Onii-chan wa Oshimai Chapter 90: Mahiro And Celebrating Success		Jul 27, 2024
Onii-chan wa Oshimai Chapter 89: Mahiro And A Home Visit		Jun 29, 2024
Onii-chan wa Oshimai Chapter 88.5		Aug 18, 2024
Onii-chan wa Oshimai Vol 9 Chapter 88.5		Aug 18, 2024
Onii-chan wa Oshimai Chapter 88: Mahiro And Romantic Antics		May 25, 2024
Onii-chan wa Oshimai Chapter 87: Mahiro And Special Techniques		Apr 27, 2024
Onii-chan wa Oshimai Chapter 86.9: Minato-kun Is Done For? 1.5		Apr 27, 2024
Onii-chan wa Oshimai Chapter 86: Mahiro And Overflowing Maternal Instincts		Mar 30, 2024
Onii-chan wa Oshimai Chapter 85.5		Aug 18, 2024
Onii-chan wa Oshimai Vol 9 Chapter 85.5		Aug 18, 2024
Onii-chan wa Oshimai Chapter 85: Mahiro And A Stressful Reunion (part 2)		Feb 24, 2024
Onii-chan wa Oshimai Chapter 84: Mahiro And A Stressful Reunion (part 1)		Jan 27, 2024
Onii-chan wa Oshimai Chapter 83.9: Minato-kun Is Done For? (full Version)		Jan 07, 2024
Onii-chan wa Oshimai Chapter 83: Mahiro And The New Year's Tour		Dec 31, 2023
Onii-chan wa Oshimai Chapter 82.5		Mar 03, 2024
Onii-chan wa Oshimai Chapter 82		Nov 28, 2023
Onii-chan wa Oshimai Chapter 81.9: Minato-kun Is Done For? (preview Version)		Nov 11, 2023
Onii-chan wa Oshimai Chapter 81.5: Chapter 81.5		Jan 11, 2024
Onii-chan wa Oshimai Chapter 81: Mahiro And Conflicting Views		Oct 28, 2023
Onii-chan wa Oshimai Chapter 80.8: Mahiro And The Growing Gal Gang + Vol 8 Extras		Jan 11, 2024
Onii-chan wa Oshimai Chapter 80: Mahiro And The Secret Engagement		Sep 30, 2023
Onii-chan wa Oshimai Chapter 79: Mahiro And The Gal Gang		Aug 26, 2023
Onii-chan wa Oshimai Chapter 78.9: Mihari's Research Lab		Aug 16, 2023
Onii-chan wa Oshimai Chapter 78.5: The Boys And Mmorpgs		Aug 14, 2023
Onii-chan wa Oshimai Chapter 78: Mahiro And Mmorpgs Revisited		Jul 29, 2023
Onii-chan wa Oshimai Chapter 77: Mahiro And The Farewell Party		Jun 24, 2023
Onii-chan wa Oshimai Chapter 76.9: The Research Lab's Mihari-chan		Jun 04, 2023
Onii-chan wa Oshimai Chapter 76.1: Blu-ray Box Vol 2 Add-in Comic		Jun 25, 2023
Onii-chan wa Oshimai Chapter 76: Mahiro And A Close Call		May 27, 2023
Onii-chan wa Oshimai Chapter 75: Mahiro And The Siren's Call		Apr 29, 2023
Onii-chan wa Oshimai Chapter 74.99: Mihari's Birthday Venue		Apr 22, 2023
Onii-chan wa Oshimai Chapter 74.5: Everyone And The Blackout		Jun 17, 2023
Onii-chan wa Oshimai Chapter 74.1: Blu-ray Box Vol 1 Add-in Comic		Jun 17, 2023
Onii-chan wa Oshimai Chapter 74: Mahiro And The Two's Night		Mar 25, 2023
Onii-chan wa Oshimai Chapter 73.1: Mahiro-chan's Birthday Venue (2023)		Apr 19, 2023
Onii-chan wa Oshimai Chapter 73		Mar 20, 2023
Onii-chan wa Oshimai Vol 8 Chapter 72.9: The Boys Are Done For Too! + Omnibus 22-23-24 Extras		Aug 15, 2024
Onii-chan wa Oshimai Chapter 72: Mahiro And An Admiration		Feb 20, 2023
Onii-chan wa Oshimai Chapter 71.5		Apr 19, 2023
Onii-chan wa Oshimai Chapter 71: Mahiro And The Selfie Boom		Jan 18, 2023
Onii-chan wa Oshimai Chapter 70.9: Vol 7 Extras		Mar 25, 2023
Onii-chan wa Oshimai Chapter 70.8: Mahiro And A Discussion On Cosplay		Mar 25, 2023
Onii-chan wa Oshimai Chapter 70.7: Vol 7 Special Booklet		Apr 19, 2023
Onii-chan wa Oshimai Chapter 70: Mahiro And An Autumn Outing		Dec 13, 2022
Onii-chan wa Oshimai Vol 7 Chapter 69.99: Nayutan's Birthday Venue		Apr 19, 2023
Onii-chan wa Oshimai Chapter 69.5: Mahiro And A Moment Of Glory		Mar 25, 2023
Onii-chan wa Oshimai Chapter 69: Mahiro And The Youthful Sports Festival		Dec 13, 2022
Onii-chan wa Oshimai Vol 7 Chapter 68.99: Momiji Birthday Venue		Apr 19, 2023
Onii-chan wa Oshimai Chapter 68: Mahiro And The World Of Hobbies		Oct 19, 2022
Onii-chan wa Oshimai Vol 7 Chapter 67.99: Kaede-chan's Birthday Venue		Apr 19, 2023
Onii-chan wa Oshimai Chapter 67: Mahiro And Male Pride		Sep 11, 2022
Onii-chan wa Oshimai Chapter 66.5: The Boys And Changing Shifts		Mar 25, 2023
Onii-chan wa Oshimai Chapter 66: Mahiro And The Tempting Culture Festival (part 2)		Aug 03, 2022
Onii-chan wa Oshimai Chapter 65: Mahiro And The Tempting Culture Festival (part 1)		Aug 03, 2022
Onii-chan wa Oshimai Chapter 64: Mahiro And A Healthy Diet		Jun 28, 2022
Onii-chan wa Oshimai Chapter 63.5: Momiji And Panties		Mar 25, 2023
Onii-chan wa Oshimai Chapter 63: Mahiro And Staying Over Because Of Rain		Apr 30, 2022
Onii-chan wa Oshimai Chapter 62.5: Nemu And Summer Vacation		Apr 19, 2023
Onii-chan wa Oshimai Vol 7 Chapter 62.1: Mihari-chan's Birthday Venue		Apr 19, 2023
Onii-chan wa Oshimai Chapter 62: Mahiro And A 2nd Semester Debut		Mar 28, 2022
Onii-chan wa Oshimai Chapter 61: Mahiro And Summer Festival		Feb 28, 2022
Onii-chan wa Oshimai Chapter 60: Mahiro And Summer Homework		Feb 12, 2022
Onii-chan wa Oshimai Chapter 59: Mahiro And Spring Cleaning		Mar 28, 2022
Onii-chan wa Oshimai Chapter 58.5		Aug 18, 2024
Onii-chan wa Oshimai Chapter 58: Mahiro And The Marine Ranger (part 2)		Nov 28, 2021
Onii-chan wa Oshimai Chapter 57: Mahiro And The Marine Ranger (part 1)		Nov 01, 2021
Onii-chan wa Oshimai Chapter 56.5		Aug 18, 2024
Onii-chan wa Oshimai Chapter 56: Mahiro And The Battle Plan Meeting		Nov 01, 2021
Onii-chan wa Oshimai Chapter 55: Mahiro And A Summer Adventure		Aug 31, 2021
Onii-chan wa Oshimai Chapter 54.75: Mahiro And Harems		Jun 17, 2023
Onii-chan wa Oshimai Vol 6 Chapter 54.9: Omnibus 16-17-18 Extras		Jun 17, 2023
Onii-chan wa Oshimai Vol 6 Chapter 54.7: Mahiro And Harems		Jun 17, 2023
Onii-chan wa Oshimai Vol 6 Chapter 54.5: Mahiro And The Serene Mind		Jan 28, 2024
Onii-chan wa Oshimai Chapter 54: Mahiro And School Ghost Stories		Jul 27, 2021
Onii-chan wa Oshimai Chapter 53.5		Aug 03, 2022
Onii-chan wa Oshimai Chapter 53		Jun 27, 2021
Onii-chan wa Oshimai Chapter 52		Jun 27, 2021
Onii-chan wa Oshimai Chapter 51.5		Aug 18, 2024
Onii-chan wa Oshimai Chapter 51		Apr 25, 2021
Onii-chan wa Oshimai Chapter 50.7		Aug 18, 2024
Onii-chan wa Oshimai Chapter 50.5		Apr 18, 2021
Onii-chan wa Oshimai Chapter 50		Apr 06, 2021
Onii-chan wa Oshimai Vol 5 Chapter 49: Mahiro And Swim Classes (part 1)		Feb 24, 2021
Onii-chan wa Oshimai Vol 5 Chapter 48.5: Mahiro And The Parent-teacher Conference		Jan 11, 2024
Onii-chan wa Oshimai Vol 5 Chapter 48: Mahiro And Class Observation		Feb 17, 2021
Onii-chan wa Oshimai Vol 5 Chapter 47: Mahiro And The Sunny Girl		Dec 26, 2020
Onii-chan wa Oshimai Chapter 46.5		Aug 03, 2022
Onii-chan wa Oshimai Vol 5 Chapter 46: Mahiro And Sticker Collecting		Nov 28, 2020
Onii-chan wa Oshimai Vol 5 Chapter 45.9: Omnibus 13-14-15 Extras		Jun 17, 2023
Onii-chan wa Oshimai Vol 5 Chapter 45.7: Mahiro And Visible Undergarments		Jun 17, 2023
Onii-chan wa Oshimai Vol 5 Chapter 45: Mahiro And The Season For New Clothes		Nov 09, 2020
Onii-chan wa Oshimai Vol 5 Chapter 44: Mahiro And The Secret Bbq		Oct 04, 2020
Onii-chan wa Oshimai Chapter 43.5		Aug 03, 2022
Onii-chan wa Oshimai Vol 5 Chapter 43: Mahiro And Fragrances		Aug 31, 2020
Onii-chan wa Oshimai Vol 5 Chapter 42.6: Ex3 Special - Mahiro And A Hair's Breadth From Danger!		Aug 31, 2020
Onii-chan wa Oshimai Vol 5 Chapter 42.5: [temp 1]41.3+41.7 & 42.5 & Mini Extra (2 Of 10)		Aug 30, 2020
Onii-chan wa Oshimai Vol 5 Chapter 42: Mahiro And The Gift Of Memories		Jul 25, 2020
Onii-chan wa Oshimai Chapter 41.8		Aug 03, 2022
Onii-chan wa Oshimai Chapter 41.6		Aug 03, 2022
Onii-chan wa Oshimai Chapter 41.5		Aug 03, 2022
Onii-chan wa Oshimai Vol 5 Chapter 41: Mahiro And The Physical Examination		Jun 27, 2020
Onii-chan wa Oshimai Chapter 40.99		Aug 03, 2022
Onii-chan wa Oshimai Chapter 40.8		Aug 03, 2022
Onii-chan wa Oshimai Chapter 40.6		Aug 03, 2022
Onii-chan wa Oshimai Chapter 40.5		Aug 03, 2022
Onii-chan wa Oshimai Vol 4 Chapter 40: Mahiro And An Important Secret (part 2)		May 24, 2020
Onii-chan wa Oshimai Vol 4 Chapter 39.5: [temp 3]37.5 & 38.5 & Mini Extra (9 Of 10)		May 14, 2020
Onii-chan wa Oshimai Vol 4 Chapter 39: Mahiro And An Important Secret		May 05, 2020
Onii-chan wa Oshimai Chapter 38.5		Aug 03, 2022
Onii-chan wa Oshimai Vol 4 Chapter 38: Mahiro And An Appreciated Break		Apr 08, 2020
Onii-chan wa Oshimai Vol 4 Chapter 37.5: [temp 2]34.5 & 36.5 & Mini Extra (6 Of 10)		Mar 02, 2020
Onii-chan wa Oshimai Vol 4 Chapter 37: Mahiro And A Girl's Mannerisms		Feb 28, 2020
Onii-chan wa Oshimai Vol 4 Chapter 36.9: Mahiro's Weekday Routine + Omnibus 10-11-12 Extras		Jun 17, 2023
Onii-chan wa Oshimai Chapter 36.5		Aug 03, 2022
Onii-chan wa Oshimai Vol 4 Chapter 36: Mahiro And A Surprise		Jan 29, 2020
Onii-chan wa Oshimai Chapter 35.6		Aug 03, 2022
Onii-chan wa Oshimai Vol 4 Chapter 35.5: Ex2 Special - I Am Mahiro And I Am Mihari		Jan 18, 2020
Onii-chan wa Oshimai Vol 4 Chapter 35.4: [temp]32.5 & 33.5 & Mini Extra (3 Of 10).zip		Jan 18, 2020
Onii-chan wa Oshimai Vol 4 Chapter 35: Mahiro And The Guidance Of Fortunes		Dec 28, 2019
Onii-chan wa Oshimai Chapter 34.5		Aug 03, 2022
Onii-chan wa Oshimai Vol 4 Chapter 34: Mahiro and the Adult's Door		Dec 01, 2019
Onii-chan wa Oshimai Chapter 33.5		Aug 03, 2022
Onii-chan wa Oshimai Vol 4 Chapter 33: Mahiro and Valentine's		Oct 29, 2019
Onii-chan wa Oshimai Chapter 32.5		Aug 03, 2022
Onii-chan wa Oshimai Vol 4 Chapter 32: Mahiro and a Surprise Visit		Sep 28, 2019
Onii-chan wa Oshimai Vol 4 Chapter 31: Mahiro and Charming Bare Legs		Sep 28, 2019
Onii-chan wa Oshimai Vol 3 Chapter 30.9: Chapter 21-27 Mini Extras [partial]		May 24, 2019
Onii-chan wa Oshimai Chapter 30.8: Asahi And Momiji		Mar 28, 2022
Onii-chan wa Oshimai Vol 3 Chapter 30.5: Extra		Aug 07, 2019
Onii-chan wa Oshimai Vol 3 Chapter 30: Mahiro and the Coming and Going Year		Jul 31, 2019
Onii-chan wa Oshimai Vol 3 Chapter 29: Mahiro and a Double Date		Jun 29, 2019
Onii-chan wa Oshimai Vol 3 Chapter 28: Mahiro and Girl's Night (Second Part)		May 28, 2019
Onii-chan wa Oshimai Chapter 27.5: Including Extra		Sep 28, 2019
Onii-chan wa Oshimai Vol 3 Chapter 27: Mahiro and Girl's Night (First Part)		Apr 27, 2019
Onii-chan wa Oshimai Chapter 26: Mahiro And Patissier		Apr 01, 2019
Onii-chan wa Oshimai Vol 3 Chapter 25: Mahiro and Finals		Feb 27, 2019
Onii-chan wa Oshimai Vol 3 Chapter 24.5: Part 1: Mahiro and Bento & Part 2: Mihari and Bento		May 26, 2019
Onii-chan wa Oshimai Chapter 24: Mahiro And Common Interests		Feb 01, 2019
Onii-chan wa Oshimai Vol 2 Chapter 23: Mahiro and the Fun Weekend		Dec 30, 2018
Onii-chan wa Oshimai Vol 3 Chapter 22.5: EX Special: Mahiro and an Uneventful Holiday		May 26, 2019
Onii-chan wa Oshimai Vol 2 Chapter 22.5: EX Special		Jan 18, 2019
Onii-chan wa Oshimai Vol 2 Chapter 22: Mahiro and the Harsh Lesson		Nov 25, 2018
Onii-chan wa Oshimai Vol 3 Chapter 21.5: Extras		May 25, 2019
Onii-chan wa Oshimai Vol 2 Chapter 21: Mahiro and the First Day of School		Oct 31, 2018
Onii-chan wa Oshimai Vol 2 Chapter 20.9: Chapter 11-20 Mini Extras		May 24, 2019
Onii-chan wa Oshimai Vol 2 Chapter 20.5: Mihari and Dresses + Mihari (afterwards) and Dresses		May 25, 2019
Onii-chan wa Oshimai Vol 2 Chapter 20: Mahiro and Middle Schoolers		Oct 04, 2018
Onii-chan wa Oshimai Vol 2 Chapter 19: Mahiro and Uploading Videos		Aug 31, 2018
Onii-chan wa Oshimai Vol 2 Chapter 18.5: Part 1: Mahiro and a "Comrade's" Return & Part 2: Mahiro and Perms		May 25, 2019
Onii-chan wa Oshimai Vol 2 Chapter 18: Mahiro and the Onsen Panic (Second Part)		Jul 30, 2018
Onii-chan wa Oshimai Vol 2 Chapter 17: Mahiro and the Onsen Panic (First Part)		Jul 06, 2018
Onii-chan wa Oshimai Vol 2 Chapter 16: Mahiro and the Hair Salon		May 26, 2018
Onii-chan wa Oshimai Vol 2 Chapter 15.5: Siblings and Kotatsu		May 24, 2019
Onii-chan wa Oshimai Vol 2 Chapter 15: Mahiro and Party Night		Apr 30, 2018
Onii-chan wa Oshimai Vol 2 Chapter 14: Mahiro and a Little Adventure		Apr 02, 2018
Onii-chan wa Oshimai Vol 2 Chapter 13: Mahiro and a Wholesome Relationship		Sep 30, 2018
Onii-chan wa Oshimai Vol 2 Chapter 12: Mahiro and a Lonely Night		Sep 30, 2018
Onii-chan wa Oshimai Vol 2 Chapter 11: Mahiro and Adventure		Sep 30, 2018
Onii-chan wa Oshimai Vol 1 Chapter 10.9: Chapter 1-10 Mini Extras		May 24, 2019
Onii-chan wa Oshimai Vol 1 Chapter 10.5: Mahiro and Helping Out & OMAKE: Mihari and Onii-chan		Sep 30, 2018
Onii-chan wa Oshimai Vol 1 Chapter 10: Mahiro and Special Home Security		Sep 30, 2018
Onii-chan wa Oshimai Vol 1 Chapter 9.5: Mahiro and the Two's Secret		Sep 30, 2018
Onii-chan wa Oshimai Vol 1 Chapter 9: Mahiro and a Girl's Vacation		Sep 30, 2018
Onii-chan wa Oshimai Vol 1 Chapter 8.5: Mahiro and Gacha (v2)		Oct 04, 2018
Onii-chan wa Oshimai Vol 1 Chapter 8: Mahiro and New Game (+Teaser Chapter 8.5)		Sep 30, 2018
Onii-chan wa Oshimai Vol 1 Chapter 7: Mahiro and Encounters with the Unknown		Sep 30, 2018
Onii-chan wa Oshimai Vol 1 Chapter 6.5: Mahiro and Going in Circles		Sep 30, 2018
Onii-chan wa Oshimai Vol 1 Chapter 6: Mahiro and the Secret Garden		Sep 30, 2018
Onii-chan wa Oshimai Vol 1 Chapter 5.5: Mahiro and Comfort for Many Days		Sep 30, 2018
Onii-chan wa Oshimai Vol 1 Chapter 5: Mahiro and a Melancholic Day		Sep 30, 2018
Onii-chan wa Oshimai Vol 1 Chapter 4: Mahiro and MMORPG		Sep 30, 2018
Onii-chan wa Oshimai Vol 1 Chapter 3: Mahiro and Identity		Sep 30, 2018
Onii-chan wa Oshimai Vol 1 Chapter 2: mahiro and the dangerous mirror		Dec 24, 2017
Onii-chan wa Oshimai Vol 1 Chapter 1.5: Mahiro and the Toilet		Jul 21, 2018
Onii-chan wa Oshimai Vol 1 Chapter 1: Mahiro and the unpleasurable body		Nov 08, 2017