Mikakunin de Shinkoukei (2014)

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Cherry Arai's original four-panel manga revolves around Kobeni Yonomori, who on her 16th birthday suddenly has a young man with little presence named Hakuya Mitsumine and his little sister Mashiro appear in front of her. It turns out that Hakuya is her fiancé, and Mashiro is her future sister-in-law. The three (and Konbeni's big sister Benio) start living together underneath the same roof, and hilarious happenings occur.

Haruka Terui (background characters in NAKAIMO, Tamako Market) as Kobeni Yonomori, the "ultimate average high school first-year student." She handles the cooking and all other household chores.

Eriko Matsui (Log Horizon's Isuzu) as Benio Yonomori, the talented student council head at high school. She is actually a pervert with siscon and lolicon issues.

Yuri Yoshida as Mashiro Mitsumine, Hakuya's little sister.

Wataru Hatano (Valvrave's Takumi Kibakawa, Fairy Tail's Gajeel Redfox) as Hakuya Mitsumine, Kobeni's fiancé. He is tall, taciturn, and a bit oblivious to the world.

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Yonomi Kobeni, an ordinary girl, finds out on her 16th birthday that she is betrothed to Mitsumine Hakuya, a boy the same age as her. Hakuya moves in from the countryside and starts living with her, bringing his younger sister who is still a primary school student with him. Also added is his older sister who is already living with Kobeni and is two years older.

The story revolves around these four people and their identities as "couples" and "sisters-in-law".

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