Hirose Goushi has a huge sister complex. So huge, he moves from his home town to Tokyo to attend Myouzen University in order to escape it!... more>>

Three years later, Goushi's little sister Noa shows up and informs him that she's taking the Myouzen University entrance exam and that she will be moving in if she passed. Little does Goushi know, she has a similarly large (if not larger) brother complex. <<less

After making a deal with God, she is reincarnated into a new world fully ready to dedicate her life to her younger sibling. However, things... more>> aren't so simple when she attracts the attention of the Emperor. Can't a girl just look after her sibling with no man? <<less

Kyosuke Kosaka, a normal seventeen-year-old high-school student, hasn't gotten along with his younger sister, Kirino, in years. For longer than he can remember, Kirino has... more>> ignored his comings and goings and looked at him with spurning eyes. It seemed as if the relationship between Kyosuke and his sister, now fourteen, would continue this way forever. One day, however, Kyosuke finds a DVD case of a magical girl anime entitled Hoshikuzu Witch Meruru (Stardust Witch Meruru), which had fallen into the entranceway of his house. To Kyosuke's surprise, inside the case, an adult video game entitled Imoto to Koishi yo! (Love with Little Sister!) is hidden. <<less

Se-Joon and Se-Wa are siblings with a dark, complex relationship. Se-Wa, a girl considered psychotic by others, is attached to her brother... a little too attached. In her eyes, there is only Se-Joon, and no one else. And what of Se-Joon's feelings?... more>>

This manhwa contains incest themes.

Title comes from French poet Beaudelaire's compilation of poems, Les Fleurs du mal. <<less

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The cool, quiet girl and the airheaded playboy are in their first ever romance!? Welcome to a romcom about two high school students who are... more>> a bit slow to pick up on things and haven't ever had their first crush!! During the autumn of their first year of high school, Hayato Kuga is assigned to sit next to Yuki Amano. Miss Amano is basically silent at all times and never smiles. So, Mr. Kuga has to try this and that to get her attention thanks to the wall he senses coming from her. As this is ongoing, even Miss Amano, who found Mr. Kuga annoying at first, is starting to open up to him...!? <<less

There's no such thing as an older sister who hates their younger sister. Every older sister on the face of the Earth loves their younger... more>> sister dearly. I, Sakura Shima, have an adorable sister one year younger than me. The sister yuri comedy everybody is talking about! <<less

Even in high school, Ritsu and Uta really get along. Suddenly, they have to pretend to be lovers...!? The real brother-sister exciting love comedy starts!!

Ai just loves her big brother, Yuzuru. He's so kind, so reliable and so cool! He always protects Ai from trouble and when she cries,... more>> he cheers her up! He's the perfect big brother. But, bad things happen soon. Her parents divorce and she and her brother are separated. Now, after nine years, one day, Ai, now 14 years old, finds a tall boy in front of her school. Who is this boy? <<less

The Academy City on water, "Rikka". This city, otherwise known as 'Asterisk', was famous for being the world's largest stage for the integrated battle entertainment <Star Wars Festival>. The young boys and girls of the <Starpulse Generation> belonging to the six academies made their wishes with Shining Armaments in their hands, vying for supremacy -- Amagiri Ayato is one of them.... more>>

Ayato arrived at Rikka at the invitation of the Student Council President of the Seidoukan Academy, Claudia, and right after that he incurred the wrath of the <Petalblaze Witch> Julis, and ended up having to duel her. <<less

Nanhi Hong is the second child in the Hong family. She has an older brother, who is the jjang (boss) of his school, and a... more>> younger brother, who is a member of the rival school's gang. When Nanhi meets a mysterious student, things begin to get complicated. What will Nanhi do? <<less

A series of unrelated short stories about sisters with brother complexes (and in some cases, the brothers also have sister complexes).

Meet Shizuki Maku - to say she looks "above average" would be a slight overstatement, but it's especially bad compared to her older twin brothers, the high-school heartthrobs Retsu and Tetsu. She always wondered whether or not she really belonged in her family, but things take a shocking twist when her brothers plant the suggestion that they may not be related after all.... more>>

Now she's supposed to pick one of them to be her boyfriend, all the while defending herself from all the other girls at school who want to keep her "brothers" for themselves! Life isn't easy when you're the ugly duckling!

Sonnan Ja Nee Yo received the Shogakukan Manga Award for shoujo manga in 2006. <<less

Ikezawa Sumire's three elder brothers, Asagi, Ai, Kon are so beautiful even friends get jealous! Sumire too loves Asagi and Ai, but for some reason she just can't like Kon. That reason is...!? ... more>>

Adoptive siblings love. <<less

In the tradition, it is only the strongest women that can rule this kingdom. The battle that decides the strongest woman done once every four... more>> years. This battle is called Queen's Blade. Erina is ordered to bring back her runaway sister, Reina, who's participating in the Queen's Blade tournament. <<less

Keiichirou Mishima is a 15-year-old guy living with his mom until she suddenly decides to fly to Paris to be with Keiichirou's dad. His mom... more>> arranges with his uncle Shirasaki to let him stay at his mansion with his two cousins Marie and Tomari, who he met many years before when he stayed with them for a short while. However, Keiichirou has forgotten nearly everything about back then, including why his cousins apparently now hate him. <<less

Choi Gang Bae is well known for being a delinquent, even managing to be the top dog in a school full of troublemakers. But when... more>> he finds out his beloved sister is being bullied in an all-girls school, he protects her the only way he can; by becoming a girl. <<less

Kurumi met her childhood friend Nagio again. He was a very good boy before, but now he has become a wicked cheerful boy....!?

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Fujishima Takara goes to high school and will start living in a dorm because he has lost all his family except for his father, who's... more>> always away for his work. Takara has to share a room with Hosaka Kiyomine. Living together isn't easy, and many rows ensue. Kiyomine is very introverted, while Takara is just the opposite. At first the two get on each other's nerves because of those differences. But things turn towards friendship and later on towards love. <<less

Teenager Kurikura Kansuke lives in a small village with his family but tragedy strikes one day when his younger sister, Ayame, is brutally murdered. Six... more>> years later, Kansuke, in his search for his missing older brother, finds multiple women who all call themselves Kurikura Ayame. Kansuke learns that out of grief for Ayame, his brother created dolls, each with a part of her corpse and enhanced for combat. Kansuke vows to find his brother and stop the mindless violence. <<less

In order to protect the girl Yuuhi Katagiri, a new transfer student, from danger, Junichi Nagase is forced to kiss her. Not understanding what just... more>> happened, she yells at him, not knowing that her father has arranged for her to marry him. <<less

The crown prince of dragon clan from the deep blue sea comes to the human world to look for his bride. But he doesn't know... more>> that his bride is a twin... <<less

Seventh grader Hayashi Renei is troubled by a strange dream: Her dead brother, who was killed in an automobile accident, comes back to life as Coo. The dream comes again the following night and then every night thereafter. ... more>>

Coo's world is a cruel one--crueler than the real world, even--with its own share of pain, suffering, and sadness. Renei is searching for her house with her brother and others whom she meets in Coo's world so that she can return to reality and the land of the living... <<less

Gorou has a crush on his older stepsister Haru. Unfortunately for Gorou, Haru happens to love teasing him sadistically in every way possible.... more>>

A 4-koma comedy about their wacky day to day life and interactions.

Hoozuki-san Chi no Aneki - Nano Shucchouban and 2 chapters of Hoozuki-san Chi no Aneki - Nano Branch are included in volume 3. <<less