Betrothed to My Sister's Ex - Season 1

Yuuta Takemoto, Takumi Mayama, and Shinobu Morita are college students who share the small apartment. Even though they live in poverty, the three of them are able to obtain pleasure through small things in life. The story follows these characters' life stories as poor college students, as well as their love lives when a short but talented 18 year old girl called Hagumi Hanamoto appears.

Nina never imagined she would be at the center of a royal deception. She’s had a rough start in life as an orphan in the castle town of Fortna. But when Prince Azure notices that her deep blue eyes look the same as the late Princess Alisha’s, he ordains that she takes her place and marry the Prince of Galgada. Despite this uncertain fate, she finds joy in knowing someone finally needs her.

Meet the girls on the losing side of romance! First is Anna Yanami, the girl-next-door type who can’t say no to delicious food. Then there’s Lemon Yakishio, a beautiful and spirited athlete. Last but not least is Chika Komari, the cute yet shy heroine with gentle charm. Together, they navigate awkward setbacks hoping to finally find love!

Kisaragi Amatsuyu is invited out alone by the cool beauty upperclassman Cosmos and his childhood friend Himawari. Expecting to hear their confessions, he triumphantly goes to meet each of them in turn. But Cosmos and Himawari both instead confess to Amatsuyu that they like his friend. Amatsuyu fights this lonely battle, but there is another girl who is looking at him. She is a gloomy girl with glasses and braids. Amatsuyu finds that he hates her, because she's always turning her sharp tongue only on him and finding enjoyment in his troubles. But it turns out that she's the only one who actually does like him.

Rishe, the duke’s daughter, is no stranger to reincarnation—it’s her seventh life, after all. Each life restarts at her broken engagement. Having been a merchant, a maid, and a knight, she now desires leisure. But her world changes when a prince, who killed her in a past life, proposes! To prevent war and live to a ripe old age, she begins her seventh life as the bride of an enemy nation’s prince.

In the middle of a ball, Scarlet's fiancé, Kyle, suddenly calls off their engagement. She's falsely accused of being a bully and people unfairly call her a "Villainess." The aristocrats and noble families all denounce her. For years, she had to put up with his abuse and idiocy, but she can't take anymore of it! At her wit's end, she asks for one last favor; to give him a good fist in the face. So begins Scarlet's story of revenge against Kyle and his cronies! A fantasy about an elegant yet rebellious fighter, who doesn't let anyone take advantage of her!!

Miki's parents come home from their vacation to announce that they are getting a divorce. But what is more shocking is that they have switched partners with another couple! And to top things off, this other couple has a handsome son, Yuu, who Miki begins to develop feelings for. To make things more disturbing, everyone moves into one house. What will everyone think about Miki's family lifestyle?

Yuichi hasn’t seen his cousin Nayuki in years. Now that he’s back, all knowledge of ever visiting has vanished. He tries to adjust to the vaguely familiar surroundings, but the gaps in his memory haunt him as time grows short. The pieces of the puzzle have appeared – an eerily silent beauty with blazing tresses, the mysterious girl with the winged backpack, and the sword-wielding demon slayer – but it’s up to Yuichi to discover how they fit together.

Menacing in appearance but gentle at heart, second year high school student Ryuuji forms an unlikely friendship with classmate Taiga, a tiny girl with a sharp tongue and a tough attitude.

Moritaka Mashiro and Akito Takagi are pretty much foils of each other. Mashiro, an average 9th grade student but talented artist, and Takagi, an overall advanced 9th grader and aspiring writer. After great convincing, Takagi convinces Mashiro to join him in becoming the greatest mangakas Japan has ever seen. Takagi, with his gift of writing, hopes to become a successful mangaka, and Mashiro, with his gift of art, hopes to marry the girl of his dreams, Azuki Miho.