Ema Hinata's father has decided to remarry a woman named Miwa Asahina. When she goes to move into the Sunrise Apartments, she meets her new brothers: All 13 of them!Brothers Conflict began as a series of novels, divided into two cours: the first one is set when Ema is in high school, while the second has Ema entering into university. It has been adapted into two otome games by Otomate: Brothers Conflict: Passion Pink and Brothers Conflict: Brilliant Blue, the latter to be released in 2013. An anime by Brains Base started airing as part of the Summer 2013 Season.
Academic Athlete: Subaru attends the Meiji University and is in the basketball team; because he dedicated his whole life to absolutly nothing but sports, he has no clue about how to deal with Ema, having no experiences with women at all.
Attempted Rape: In episode 10 of the anime, Fuuto was about to rape a sleeping Ema, because in his words, "You [Ema] belong to me." Thankfully,he doesn't go threw with it, because he realizes that he truly loves her.
Seiyuu: Two of the three triplets, Azusa and Tsubaki, in-universe.
Sibling Rivalry: Yusuke vs Fuuto and Tsubaki vs Azusa. To be honest, except for the otome game, where the player can choose one of the brother's route, the Asahina brothers are all "love" rivals for Ema.
Speaks Fluent Animal: Ema talks with Juli, her pet squirrel, all the time. Later we find out that Rui, or "Luis", is also able to do that.
Their First Time: Ema has her "first" with a few of the brothers in a different route. The following includes: Tsubaki, Kaname, Masaomi, Hikaru.