ONIMAI: I'm Now Your Sister!

ONIMAI: I'm Now Your Sister!

✍️ Nekotoufu 14.619 viewsOngoing

Comedy Slice of Life

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Chapters(216 chapters)

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Chapter 115- Mahiro and the Joys of Creation

Chapter 114- Mahiro and the Cosplay Photoshoot

Chapter 113- Mahiro and the Ecological Research Duo

Chapter 112.5- MAHIRO AND THE SUCCUBUS DRESS

Chapter 112- Mahiro and Gender Topsy-Turvy

Chapter 111.5- MAHIRO AND THE SECOND ROUND

Chapter 111- Mahiro and the Fun-filled Lion's Den

Chapter 110- Mahiro and the Demon of the Prefect Council

Chapter 109- Mahiro and a Healthy Beauty Regimen

Chapter 108.5- A DATE WITH NEMU

Chapter 108- Mahiro and Bodyguards

Chapter 107.9- Minato-kun is Done For? 3

Chapter 107.5- MAHIRO AND THE MAKEOVER

Chapter 107- Mahiro and Popularity Rankings

Chapter 106- Mahiro and Sharing Secrets

Chapter 105- Mahiro and an Offline Adventure

Chapter 104.5- MAHIRO AND THE MOTHERLY EMBRACE

Chapter 104- Mahiro and Mother's Day

Chapter 103- Mahiro and Heaven or Hell

Chapter 102.2- Aoi-chan Edition

Chapter 102.1- Niichi-chan Edition

Chapter 102- Mahiro and a Technological Nightmare

Chapter 101.5- MAHIRO AND THE FEMALE CHARACTERS

Chapter 101- Mahiro and a Celebration

Chapter 100.9- Onii-chan's Drawing Book

Chapter 100.5- MAHIRO AND THE CAT ARMY......

Chapter 100- Mahiro and a Good Day for an Experiment

Chapter 99.5- Mahiro and Getting a License + Doujin Issue 33 Extras

Chapter 99- Mahiro and the Autobahn

Chapter 98.5- Mahiro and Being a Small Fry Human

Chapter 98- Mahiro and a One-Night Stay

Chapter 97- Mahiro and Crossing the Line

Chapter 96- Mahiro and a Token of Appreciation

Chapter 95.9- Minato-kun is Done For? 2

Chapter 95.5- Miyo and the Date

Chapter 95- Mahiro and the University Expedition Squad

Chapter 94- Mahiro and the New School Year, Once Again

Chapter 93.5- The Boys and Another Shot

Chapter 93- Mahiro and a Special Treat

Chapter 92.5- Asahi and Growth

Chapter 92- Mahiro and a Maiden's Secret

Chapter 91.5- Nemu and Nodoka

Chapter 91- Mahiro and Marriage

Chapter 90.9- Volume 9 Special Edition Extras

Chapter 90.8- Mahiro and Mama (Revisited)

Chapter 90- Mahiro and Celebrating Success

Chapter 89- Mahiro and a Home Visit

Chapter 88- Mahiro and Romantic Antics

Chapter 87- Mahiro and Special Techniques

Chapter 86.9- Minato-kun is Done For? 1.5

Chapter 86.5- Special: Asahi's Birthday

Chapter 86- Mahiro and Overflowing Maternal Instincts

Chapter 85- Mahiro and a Stressful Reunion (Part 2)

Chapter 84- Mahiro and a Stressful Reunion (Part 1)

Chapter 83.9- Minato-kun is Done For? (Full Version)

Chapter 83- Mahiro and the New Year's Tour

Chapter 82- Mahiro and a Silent Night

Chapter 81.9- Minato-kun is Done For? (Preview Version)

Chapter 81.8- Non-Mahiro Special: Aoi-chan Edition

Chapter 81.5- Chapter 81.5

Chapter 81- Mahiro and Conflicting Views

Chapter 80.8- Mahiro and the Growing Gal Gang + Volume 8 Extras

Chapter 80- Mahiro and the Secret Engagement

Chapter 79- Mahiro and the Gal Gang

Chapter 78.9- Mihari's Research Lab

Chapter 78.5- The Boys and MMORPGs

Chapter 78- Mahiro and MMORPGs Revisited

Chapter 77- Mahiro and the Farewell Party

Chapter 76.9- The Research Lab's Mihari-chan

Chapter 76.1- Blu-Ray Box Volume 2 Add-in Comic

Chapter 76- Mahiro and a Close Call

Chapter 75- Mahiro and the Siren's Call

Chapter 74.99- Mihari's Birthday Venue

Chapter 74.5- Everyone and the Blackout

Chapter 74.1- Blu-Ray Box Volume 1 Add-in Comic

Chapter 74- Mahiro and a Night Together

Chapter 73.5- Non-Mahiro Special: Nii-chan Edition

Chapter 73.1- Mahiro-chan's Birthday Venue (2023)

Chapter 73- Mahiro and Big Bro's Secrets

Chapter 72.9- The Boys Are Done For Too! + Omnibus 22-23-24 Extras

Chapter 72- Mahiro and an Admiration

Chapter 71.5- Mahiro and the Magazine Model

Chapter 71- Mahiro and the selfie boom

Chapter 70.9- Volume 7 Special Booklet

Chapter 70.8- Volume 7 Extras

Chapter 70.7- Mahiro and a Discussion on Cosplay

Chapter 70- Mahiro and an autumn outing

Chapter 69.99- Nayutan's Birthday Venue

Chapter 69.5- Mahiro and a Moment of Glory

Chapter 69- Mahiro and the Youthful Sports Festival

Chapter 68.99- Momiji Birthday Venue

Chapter 68- Mahiro and the World of Hobbies

Chapter 67.99- Kaede-chan's birthday venue

Chapter 67- Mahiro and Male Pride

Chapter 66.5- The Boys and Changing Shifts

Chapter 66- Mahiro and the Tempting Culture Festival (Part 2)

Chapter 65- Mahiro and the Tempting Culture Festival (Part 1)

Chapter 64- Mahiro and a Healthy Diet

Chapter 63.99- Omnibus 19-20-21 Extras

Chapter 63.5- Momiji and Panties

Chapter 63- Mahiro and Staying Over Because of Rain

Chapter 62.5- Nemu and Summer Vacation

Chapter 62.1- Mihari-chan's Birthday Venue

Chapter 62- Mahiro and a 2nd Semester Debut

Chapter 61- Mahiro and Summer Festival

Chapter 60- Mahiro and Summer Homework

Chapter 59- Mahiro and spring cleaning

Chapter 58- Mahiro and the Marine Ranger (Part 2)

Chapter 57- Mahiro and the Marine Ranger (Part 1)

Chapter 56- Mahiro and The Battle Plan Meeting

Chapter 55- Mahiro and a Summer Adventure

Chapter 54.9- Omnibus 16-17-18 Extras

Chapter 54.7- Mahiro and Harems

Chapter 54.5- Mahiro and the serene mind

Chapter 54- Mahiro and School Ghost Stories

Chapter 53.5- Boys and Girls

Chapter 53- Mahiro and the North Wind and Sun

Chapter 52- Mahiro and the Little Garden

Chapter 51- Mahiro and Passing the Rainy Season

Chapter 50- Mahiro and Swim Classes (Part 2)

Chapter 49- Mahiro and Swim Classes (Part 1)

Chapter 48.5- MAHIRO AND THE PARENT-TEACHER CONFERENCE

Chapter 48- Mahiro and Class Observation

Chapter 47- Mahiro and the Sunny Girl

Chapter 46.5- Mihari and Memories of Stickers

Chapter 46- Mahiro and Sticker Collecting (fixed)

Chapter 45.9- Omnibus 13-14-15 Extras

Chapter 45.7- Mahiro and Visible Undergarments

Chapter 45- Mahiro and the Season for New Clothes

Chapter 44- Mahiro and the Secret BBQ

Chapter 43- Mahiro and Fragrances

Chapter 42.6- EX3 Special - Mahiro and a Hair's Breadth from Danger!

Chapter 42.5- [TEMP 1]41.3+41.7 & 42.5 & Mini Extra (2 of 10)

Chapter 42- Mahiro and the Gift of Memories

Chapter 41- Mahiro and the Physical Examination

Chapter 40.99- Bonus Illustration

Chapter 40.8- Mihari and Skipping Grades

Chapter 40.6- Mini Extras [Complete]

Chapter 40.5- Mahiro and Barefoot

Chapter 40- Mahiro and an Important Secret (Part 2)

Chapter 39- Mahiro and an Important Secret

Chapter 38.5- Momiji and Massages

Chapter 38- Mahiro and an Appreciated Break

Chapter 37.5- Mihari and High School Girls

Chapter 37- Mahiro and a Girl's Mannerisms

Chapter 36.9- Mahiro's Weekday Routine + Omnibus 10-11-12 Extras

Chapter 36.5- Mahiro and a Present

Chapter 36- Mahiro and a Surprise

Chapter 35.6- EX2 Special - I am Mahiro and I am Mihari

Chapter 35- Mahiro and the Guidance of Fortunes

Chapter 34.5- Chapter 34.5 (1+2+3)

Chapter 34- Mahiro and the Adult's Door

Chapter 33.5- Mahiro and Handmade

Chapter 33- Mahiro and Valentine's

Chapter 32.5- Mahiro and Drinks

Chapter 32- Mahiro and a Surprise Visit

Chapter 31- Mahiro and Charming Bare Legs

Chapter 30.9- Chapter 21-30 Mini Extras [Complete]

Chapter 30.8- Asahi and Momiji

Chapter 30.5- Mahiro and Hot Kiss

Chapter 30- Mahiro and the Coming and Going Year

Chapter 29- Mahiro and a Double Date

Chapter 28.1- Mahiro and Girl's Night (Second Part) [Tank Version]

Chapter 28- Mahiro and Girl's Night (Second Part) [Pixiv Version]

Chapter 27.99- Omnibus 7-8-9 Extras

Chapter 27.5- Including Extra (25.5 - 26.5 - 27.5)

Chapter 27- Mahiro and Girl's Night (First Part)

Chapter 26- Mahiro and Patissier

Chapter 25- Mahiro and Finals

Chapter 24.5- Part 1: Mahiro and Bento & Part 2: Mihari and Bento

Chapter 24- Mahiro and Common Interests

Chapter 23- Mahiro and the Fun Weekend

Chapter 22.5- EX Special - Mahiro and an Uneventful Holiday

Chapter 22- Mahiro and the Harsh Lesson

Chapter 21.5- Extras

Chapter 21- Mahiro and the First Day of School (V2)

Chapter 20.9- Chapter 11-20 Mini Extras

Chapter 20.5- Mihari and Dresses + Mihari (afterwards) and Dresses

Chapter 20- Mahiro and Middle Schoolers (v2)

Chapter 19- Mahiro and Uploading Videos

Chapter 18.99- Omnibus 4-5-6 Extras

Chapter 18.5- Part 1: Mahiro and a "Comrade's" Return & Part 2: Mahiro and Perms

Chapter 18- Mahiro and the Onsen Panic (Second Part)

Chapter 17- Mahiro and the Onsen Panic (First Part)

Chapter 16- Mahiro and the Hair Salon

Chapter 15.5- Siblings and Kotatsu

Chapter 15- Mahiro and Party Night

Chapter 14- Mahiro and a Little Adventure

Chapter 13- Mahiro and a Wholesome Relationship

Chapter 12.5- Mahiro and Nichiasa

Chapter 12- Mahiro and a Lonely Night

Chapter 11- Mahiro and Adventure

Chapter 10.99- Omnibus 1-2-3 Extras

Chapter 10.9- Chapter 1-10 Mini Extras

Chapter 10.5- Mahiro and Helping Out & OMAKE - Mihari and Onii-chan

Chapter 10- Mahiro and Special Home Security

Chapter 9.5- Mahiro and the Two's Secret

Chapter 9- Mahiro and a Girl's Vacation

Chapter 8.5- Mahiro and Gacha (v2)

Chapter 8- Mahiro and New Game

Chapter 7- Mahiro and Encounters with the Unknown

Chapter 6.5- Mahiro and Going in Circles

Chapter 6- Mahiro and the Secret Garden

Chapter 5.5- Mahiro and Comfort for Many Days

Chapter 5- Mahiro and a Melancholic Day

Chapter 4- Mahiro and MMORPG

Chapter 3- Mahiro and Identity

Chapter 2- Mahiro and the Dangerous Mirror

Chapter 1.5- Mahiro and the Toilet

Chapter 1- Mahiro and the Unpleasurable Body