Aizawa Haruki, 16 years old, is in his 2nd year of high school, and likes to live efficiently. One day during summer vacation, a girl, Aizawa Himari, suddenly appears, calling him 'Onii-chan' and claiming that...

A slightly erotic home love comedy that unfolds under the roof of the Yoshita family! The eldest daughter, Juri, wears a swimsuit at home. The second daughter, Minori, has big natural breasts. The third...

When I returned home for the first time in a long time, my brother transformed into a girl!?

From Chibi Manga: Mahiro's father has remarried and Mahiro is supposed to live with his new family including honor student Rei who is in the same class with him and believes "a guy who thinks of nothing but...

The protagonist is reincarnated as Fiaje, a noblewoman in a certain romance fantasy novel. Her role is that of a completely insignificant mob character, appearing only to highlight the villain. Her fate is a...

Rikuto had a new younger brother Ayumu after his father’s remarriage. However, little did he know that Ayumu was actually a girl and it was under her mother’s orders that she pretend to be a boy to him. Every...

A collection of oneshots: Imouto ga Dekimashita. (I Got Myself a Little Sister)Azusa's mother has remarried and Azusa is worried about whether or not her new younger sister will like her.Sotsugyou no Hi...

A little brother-like secret relationship with his little sister?! A romantic comedy between siblings with a misunderstanding begins! Akira, my stepbrother, was brought into my life as a high school student...

Hiromichi Sato has been dating Haruka for a month, and their relationship is quickly heading in a good direction. But one day Hiromichi’s parent announces they’re remarrying and he’ll be getting a new step...

The protagonist, Kotaro lives together with his 3 sexy step-sisters.

After the re-marriage of her mother, Himari went to her former city. but, she'll meet again the boy who traumatized her in primary school...! But the worst thing is what she'll learn after getting back from...

Shiho is an unfortunate woman. Her marriage only lasted for three days because of her husband died. Shiho then decided to be the guardian of her late husband's little brother, Makoto, who was still in...

Asahi (Beta) and Seiya (Alpha) are childhood friends who grew up together. The spring after they began high school, their parents decide to marry each other. Although, Asahi is surprised, he begins to accept...

A girl and her father go to live with her mother's family after WWII, while her much younger aunt is going to marry her father via "koburiawase:" the practice of having a widow or widower marry a younger...

In the Koi Nanka Shitakunai series: V.1 - Kyou kara Kyoudai ni NariWhen Nakajima's mother decided to remarry he was afraid but everything turned out to be even better than he expected. His new older brother...

Minato Usami is a high-school girl with a new little brother from her father's remarriage. Having high expectations after being told that her new brother is an adorable little boy, Koshiro—said little brother...

Love, true Love! For the lovely, widowed Lady Sherington, it bloomed in her thirty-sixth year, when she was still ravishing enough to pass as the twin of her daughter Trina. But her gentle heart was racked with...

Shigeharu Honda is a rising batter in the Japanese League. His son, Goro, is a pitcher in the Little League and aspires to follow in his father's footsteps. Momoko Hoshino, Goro's schoolteacher, is the first...

"I won't let things go according to the novel's plot!" One day, the protagonist wakes up to find herself reincarnated as Maria, the villainess from her favorite fantasy novel. Maria is the stepmother of the...

It's the time of the pioneers of the Far West, when lots of people of the population leaves on the track of the Oregon, to fulfil their dreams of conquest. Mayme is a little girl who lives peacefully with her...

Following her mother’s passing, Midori is now not only responsible for raising her little brother, Ai, but she’s also tied down by housework and other school commitments, making it hard to establish any form of...

Shouta Tanaka's father recently remarried and to take advantage of their honeymoon, he leaves his son in the hands of his new wife's daughter, Kaoru. Thus begins a new cohabitation between the young Shouta and...

One night, Mirai was suddenly handed a ring by a pink-haired boy who was standing in front of a fountain. Her father is remarrying and when they moved into their new house, she was surprised to discover that...

title I had a fateful reunion with my first love!My ideal first love has returned as my younger brother.This love is not forbidden!