Hentai Manga like Onii-chan Datte Amaetai Wake de.

Aniki no Ichiban Oishii Tokoro

Also known as My Brother's Sweetest Spot.

Status: Finished
Genres: Hentai , Romance

Azuma Sakuragi is deeply in love... with his twin brother, Miyabi! Miyabi is a pure genius at archery, but pretty much useless at everything else. You would think Azuma would be fed up with taking care of him all the time, but instead, he's happy to spend as much time with Miyabi as he can... until one day, the A.C. in Miyabi's room breaks down, and Miyabi has to sleep in Azuma's room... and share his bed! Can Azuma keep himself from secretly touching his brother?

Yonin no Nibiiro

Also known as Groping in the Dark.

Status: Finished
Genres: Drama , Hentai

As he walks down the street, Yu spots a naked figure in a fur coat. Bound to be arrested by the police, Yu grabs the strange naked man and starts running. Little does he know he just laid his hands on the yakuza's belonging. That reality quickly catches up to him literally, and before he knows it, Yu is in the middle of yakuza territory. Hot-headed Makoto flaunts his power as usual while calm and collected Ai, his half-brother and first-man, takes care of the aftermath. Gradually, the complications and relations between the yakuza come to light... Yu stepped on a landmine, but how far will the blast reach?

Ienai Itami wo Daiteiru

Status: Finished
Genres: Drama , Psychological

Shun and his older brother have a little strange relationship...

There is also Koganei from Kusatta Rasen, and the Makino brothers appear in Ayaui Kyouen; both short stories are collected in Rakuda Tsukai to Ouji no Yoru.

Hiren

Status: Finished
Genres: Drama , Hentai , Romance

When Touya had his first wet dream, Naoto decided to teach his younger brother how to pleasure and release himself. Little did he know that the not-so-innocent act would lead to something else. Seeing his big brother having an orgasm made little Touya develop a desire to have his brother to himself, but knowing that it was a taboo, he kept it a secret close to his heart. But Naoto had his own bones to bury. A change in the family opened all the boxes and the secrets were laid bare on the table... Now they both have to find a way to deal with each other and move on.

Namaiki na Otouto wo Ai Oshimu Houhou

Status: Finished
Genres: Romance

Jin has officially become a couple his step-brother Soji and they are living together happily as a couple. Until one day he overheard Soji asking a colleague about how to go about losing his virginity…

Bakadane, Shitteruyo.

Status: Finished
Genres: Drama

Nii-san can’t do anything without me. That is what Shun has always believed. Waking him up every morning, helping him get ready for school, helping him study; Shun is perfectly content with looking after his helpless, airheaded older brother. But as Spring draws closer and graduation is just around the corner, how will this change their relationship?

Futouhen Sankakkei no Teiri

Status: Finished
Genres: Romance

A rental store employee has a surprise waiting for him upon taken an customer home.

Zettai, Fukujuu Meirei: Ore ga Iu Koto Kiku Wake ne

Also known as Absolute Submission - Like Hell I'll Obey!-.

Status: Finished
Genres: Drama

As the worst delinquent of his grade, Kikuma Teranishi is forced to change dorm rooms after breaking the school rules one too many times. Reluctantly entering his new room, he comes face to face with the dorm superintendent, Takasumi Uryuu, who stirs in him hitherto unknown feelings... Kikuma's body tingles, and he wants to take out his urges on Takasumi... What is going on? The next time Kikuma breaks the school rules, Takasumi lays down a ground rule that sparks their relationship: "If you obey, I'll reward you. If you don't, you get punished."

Kawaikunai Aniki wo Aegasu Houhou

Status: Finished
Genres: Romance

A playboy college student who doesn't run out of lovers, Jin's stress relief is kissing his foster brother!

An ordinary big brother who's adopted, Souji, who plays the good kid and doesn't get angry no matter what is done to him. The only thing that upsets this big brother is the unexpected kiss. The mask of the older brother who never shows his true self was finally peeled off... Or so he thought but...

A sadistic type yandere (sweet and gentle yet brutal) younger brother x kojirase (someone who's not confident about their self) type ill-fated older brother, and their forbidden-obsessive love!!

Deichuu no Hasu

Also known as A Lotus Flower in the Mud.

Status: Finished
Genres: Drama , Psychological , Romance

Following the death of his parents, Motoharu raises his younger brother Akio. All on his own, Motoharu starts selling his body to make ends meet. Akio, an honors student with a bright future, often catches Motoharu sleeping with his “clients” and cleans up after him. But, despite the “perfect little brother” image, Akio harbors a dangerous brotherly love…