The Sister of Sisters!

Imouto-chan's Secrets and the Brother Back Then

Siblings on the Beach

Pigtail Attack on Brother and Sister

Brother Attacks His Sister! Change!

12.5 Battle at Splashland

Late Night Encounter

Written Challange from Mr. X

Run, You Honest Man

Attack! Mr. X

Darker than BL

The Most Dangerous Combination

Fakesleeping Fakesleepers

The Youth of Lies

The Ambition of the Lurking Mayuka

The Crisis at Hand

Consideration Towards a Regular Customer

BL Intersection

Assault on Brother, an Unprecedented Crisis

Splashland of Plots and Desires

A Beautiful and Attractive Knob

The Things Important to Brother

Pool, Nipples, a Boy and a Girl

I Will Catch the Criminal Red-Handed

Farewell Splashland

Something is Approaching

Mister X (Part One)

Mister X (Part Two)

The Truly Scary Household Remedy of Dr. Iroha

Takanashi Shuusuke and Christmas

Shuusuke's Private Lesson

A Brutal Tutor

Richika's Aim

Special Lesson

The Cornered Shuusuke

Iroha's Secret Move

Extra

Nao, Richika and a Betrayer

Shuusuke's Action and Reaction

Shuusuke Rescue Mission

Shuusuke's Price For Pleasure

Nao's Plan

Late Night Battle

Brother x Step Sister Older Sister x Little Brother

Late Night Breakdown

Eve Before The Decisive Battle

The End of the Test, and

Nao and Ritsuka

Richika's Past and Nao's Future

Farewell Richika-sensei

Takanashi Nao

The Opening Ceremony of a New Meeting

Nao and Hozumi

A Breakdown and a Reunion

A Stepsister, a School Junior, a Childhood Friend. And the Brother a

A Childhood Friend's Determination

Fast Approach, Hozumi and Shuusuke

Secret Manoeuvring and Violent Attacks

The Reapproach by the Childhood Friend and School Junior

The Sweet Life of the Brother and His Childhood Friend

Hozumi's Confession

The Counterattack from the Childhood Friend Full of Prejudice

Loitering Late at Night

Thump! A Fateful Meeting!

Straying Brothers, Intimate Brothers

Soulmate Brothers

72.5 Brother And Brother-In-Law (Part One)

Brother And Brother-In-Law (Part Two)

Brother's Anger

Brother And The Truth

The Crisis Approaching Brother

Stepsister's Turn

Brother And Sister's Confrontation (Part One)

 Brother And Sister's Confrontation (Part Two)

Little Sisters Battle

Cornered Hozumi (Part One)

Cornered Hozumi (Part Two)

Shuusuke's Wandering Soul

Predecessor's Mistakes, Predecessor's Teachings (Part One)

Predecessor's Mistakes, Predecessor's Teachings (Part Two)

Stepsister and Childhood Friend

Stepbrother and Stepsister and

Nao's Future, Shuusuke's Future

Reuniting with your first love in a "ladyboys sex chat"? An obsessed doggie-like top x a tyrant "princess" with a twisted temperament!
 
"There's no way I can be wrong! Sei-chan was my first love."
 
Sei-chan was my hero when I was little, but he suddenly disappeared from my life. In the spring when I became a university student, I meet him again after 10 years. But he has changed, and one day we somehow ended up becoming sex buddies...!
 
(Source: Shu-Cream)