The Shiunji family, with their seven children reside in a mansion within Tokyo’s Setagaya ward. The eldest son, Arata, is tired of being pushed around by his five sisters and daydreams of a life without them. That is, until Arata’s father reveals a shocking truth—Arata isn’t biologically related to his sisters! The siblings’ relationships will be tested as they navigate life in this new light.
The Shiunji Family Children is finished and has 12 Episodes. It is also Known as: 紫雲寺家の子供たち, The Shiunji Family Child, รักว้าวุ่นในบ้านชิอุนจิ
Genres: Harem, Romance, Comedy, Coming Of Age
Top 8 Anime Like Shiunji-ke no Kodomotachi
8. Kakkou no Iinazuke

On the way to meet his birth parents, super-student Nagi meets brash Erika, who needs a quick favor. Pose as her boyfriend at dinner so she can avoid an arranged marriage. But things get tricky once they realize they’re heading to the same spot, and her parents still want them wed. How does he ask out his school crush, keep his grades up, and hide his pending nuptials? No one said love was easy!
A Couple of Cuckoos is finished and has 24 Episodes. It is also Known as: カッコウの許嫁, Kakkou no Iinazuke
7. Kono Naka ni Hitori, Imouto ga Iru!

Is insanity hereditary? Shougo Mikadono's beginning to think so, because the terms of his late father's will seem crazy and following them may drive Shougo bonkers as well. Oh, it sounds simple at first: before Shougo can claim his VERY large inheritance, he just has to start attending a certain new school and find a nice girl to marry. It's a little unromantic, but perfectly do-able, right? After all, all the girls seem quite friendly, so all Shougo has to do is find one he has something in common with. EXCEPT, and here's the kicker, it turns out that Shougo has WAY too much in common with one of them, because she's actually his long lost sister! And he has no idea which one she is! Will Shougo meet and court his Miss Right without committing something very morally wrong? Can he find his future bride without slipping into the wrong set of genes? And if his little sister does reveal herself, just how much will be revealed and under what circumstances?
NAKAIMO - My Little Sister Is Among Them! is finished and has 12 Episodes. It is also Known as: この中に1人、妹がいる!, NakaImo, One of Them is My Younger Sister!, Who is Imouto?
6. Joukamachi no Dandelion

The Sakurada siblings live a normal life in a typical Japanese household. Well, that's what their father, the king, wants for them at least. As members of the royal family, each sibling possesses a unique ability, and over two thousand security cameras have been placed around town to make sure the children are safe and sound. Moreover, all nine of them have been designated as a potential successor to the throne with the decision that the next ruler will be selected through an election.
However, for the timid Akane Sakurada, the third eldest daughter who wields the power to manipulate gravity, all of this attention is a complete nightmare. With all the cameras constantly monitoring the candidates and even broadcasting their actions on the Sakurada-dedicated news channel, she decides that if she becomes king, the cameras have got to go. But just how will she convince the public that she is the most suited to rule if she can't even overcome her own shyness?! Election season is in full swing as the search for the next king begins in Joukamachi no Dandelion.
Castle Town Dandelion is finished and has 12 Episodes. It is also Known as: 城下町のダンデライオン, Joukamachi no Dandelion
5. Yosuga no Sora: In Solitude, Where We Are Least Alone.

After losing both of their parents in an accident, Haruka and his twin sister Sora move out of the city to the rural town where they spent their childhood summers. In their new home, everything seems peaceful until Haruka discovers a special, forbidden love that may disrupt the entire town!
Yosuga no Sora is finished and has 12 Episodes. It is also Known as: ヨスガノソラ In solitude, where we are least alone., Sky of Connection
4. Yozakura-san Chi no Daisakusen

A family far from ordinary?! High schooler Taiyo Asano, the 'Ultimate Introvert', lost his family in a tragic accident. The only one he could speak to is his childhood friend, Mutsumi Yozakura who harbors a wild secret as the heir to a spy lineage. Her brother, Kyoichiro, a skilled spy, targets Taiyo. To save themselves, Taiyo agrees to marry Mutsumi and join the Yozakura family, embarking on an unprecedented mission!
Mission: Yozakura Family is finished and has 27 Episodes. It is also Known as: 夜桜さんちの大作戦, Yozakura-san Chi no Daisakusen
3. Masamune-kun no Revenge

As a child, Masamune Makabe was mercilessly teased about his weight and cruelly nicknamed “Pig’s Foot” by a young girl named Aki Adagaki. Years later, Masamune continues to hold resentment and decides to seek revenge against his tormenter. Now, handsome and in top shape, he returns to exact vengeance on Aki! But as he gets closer to her, he finds his heart desires something other than revenge.
Masamune-kun's Revenge is finished and has 12 Episodes. It is also Known as: 政宗くんのリベンジ, Masamune-kun no Revenge
2. 5-toubun no Hanayome

Uesugi Fuutarou, a high school second-year from a poor family, receives a highly appealing offer to work part-time as a tutor... but his students turn out to be girls from his own class! What's more, they're quintuplets... and all five are beautiful, but happen to be problem students who have borderline grades and hate studying! Looks like his first assignment will be to win all the sisters' trust?! Every day is a wild party in this rom-com centering around the quintuplet sisters of the Nakano household!
The Quintessential Quintuplets is finished and has 12 Episodes. It is also Known as: 五等分の花嫁, Go-toubun no Hanayome, The Five Wedded Brides
1. Masamune-kun no Revenge R

Masamune and Adagaki return for more romantic antics, this time on a school trip to France!
Masamune-kun’s Revenge: R is finished and has 12 Episodes. It is also Known as: 政宗くんのリベンジR, Masamune-kun’s Revenge Season 2, Masamune-kun no Revenge 2nd Season