Onii-chan no Koto Nanka Zenzen Suki ja Nain da Kara ne!!
Junior High student Nao's brother complex is so strong, it's almost at the point of incest. She's determined to make her brother, High School student Shuusuke, see her as a woman. So determined, that she goes as far as going into his room to throw away all his non-incest related porn. But as she's looking for his porno stash, she finds a photo album… and she's not in any of his childhood pictures. What is going on?
94 chapters
- Chapter 85 — Nao's Future, Shuusuke's Future
- Chapter 84 — Stepbrother and Stepsister and
- Chapter 83 — Stepsister and Childhood Friend
- Chapter 82.5 — Predecessor's Mistakes, Predecessor's Teachings (Part Two)
- Chapter 82 — Predecessor's Mistakes, Predecessor's Teachings (Part One)
- Chapter 81 — Shuusuke's Wandering Soul
- Chapter 80.5 — Cornered Hozumi (Part Two)
- Chapter 80 — Cornered Hozumi (Part One)
- Chapter 79 — Little Sisters Battle
- Chapter 78.5 — Brother And Sister's Confrontation (Part Two)
- Chapter 78 — Brother And Sister's Confrontation (Part One)
- Chapter 77 — Stepsister's Turn
- Chapter 76 — The Crisis Approaching Brother
- Chapter 75 — Brother And The Truth
- Chapter 74 — Brother's Anger
- Chapter 73.5 — Brother And Brother-In-Law (Part Two)
- Chapter 73 — Brother And Brother-In-Law (Part One)
- Chapter 72.5
- Chapter 72 — Soulmate Brothers
- Chapter 71 — Straying Brothers, Intimate Brothers
- Chapter 70 — Thump! A Fateful Meeting!
- Chapter 69 — Loitering Late at Night
- Chapter 68 — The Counterattack from the Childhood Friend Full of Prejudice
- Chapter 67 — Hozumi's Confession
- Chapter 66.5 — Extra
- Chapter 66 — The Sweet Life of the Brother and His Childhood Friend
- Chapter 65 — The Reapproach by the Childhood Friend and School Junior
- Chapter 64 — Secret Manoeuvring and Violent Attacks
- Chapter 63 — Fast Approach, Hozumi and Shuusuke
- Chapter 62 — A Childhood Friend's Determination
- Chapter 61 — A Stepsister, a School Junior, a Childhood Friend. And the Brother a
- Chapter 60 — A Breakdown and a Reunion
- Chapter 59 — Nao and Hozumi
- Chapter 58 — The Opening Ceremony of a New Meeting
- Chapter 57 — Takanashi Nao
- Chapter 56 — Farewell Richika-sensei
- Chapter 55 — Richika's Past and Nao's Future
- Chapter 54 — Nao and Ritsuka
- Chapter 53 — The End of the Test, and
- Chapter 52 — Eve Before The Decisive Battle
- Chapter 51 — Late Night Breakdown
- Chapter 50 — Brother x Step Sister Older Sister x Little Brother
- Chapter 49 — Late Night Battle
- Chapter 48 — Nao's Plan
- Chapter 47 — Shuusuke's Price For Pleasure
- Chapter 46 — Shuusuke Rescue Mission
- Chapter 45 — Shuusuke's Action and Reaction
- Chapter 44 — Nao, Richika and a Betrayer
- Chapter 43.5 — Extra
- Chapter 43 — Iroha's Secret Move
- Chapter 42 — The Cornered Shuusuke
- Chapter 41 — Special Lesson
- Chapter 40 — Richika's Aim
- Chapter 39 — A Brutal Tutor
- Chapter 38 — Shuusuke's Private Lesson
- Chapter 37 — Takanashi Shuusuke and Christmas
- Chapter 36 — The Truly Scary Household Remedy of Dr. Iroha
- Chapter 35.5 — Mister X (Part Two)
- Chapter 35 — Mister X (Part One)
- Chapter 34 — Something is Approaching
- Chapter 33 — Farewell Splashland
- Chapter 32 — I Will Catch the Criminal Red-Handed
- Chapter 31 — Pool, Nipples, a Boy and a Girl
- Chapter 30 — The Things Important to Brother
- Chapter 29 — A Beautiful and Attractive Knob
- Chapter 28 — Splashland of Plots and Desires
- Chapter 27 — Assault on Brother, an Unprecedented Crisis
- Chapter 26 — BL Intersection
- Chapter 25 — Consideration Towards a Regular Customer
- Chapter 24 — The Crisis at Hand
- Chapter 23 — The Ambition of the Lurking Mayuka
- Chapter 22 — The Youth of Lies
- Chapter 21 — Fakesleeping Fakesleepers
- Chapter 20 — The Most Dangerous Combination
- Chapter 19 — Darker than BL
- Chapter 18 — Attack! Mr. X
- Chapter 17 — Run, You Honest Man
- Chapter 16 — Written Challange from Mr. X
- Chapter 15 — Late Night Encounter
- Chapter 14 — Battle at Splashland
- Chapter 13
- Chapter 12.5
- Chapter 12
- Chapter 11
- Chapter 10
- Chapter 9
- Chapter 8
- Chapter 7
- Chapter 6
- Chapter 5 — Brother Attacks His Sister! Change!
- Chapter 4 — Pigtail Attack on Brother and Sister
- Chapter 3 — Siblings on the Beach
- Chapter 2 — Imouto-chan's Secrets and the Brother Back Then
- Chapter 1 — The Sister of Sisters!