The Yuzuki Family’s Four Sons

Taiyou Asano is a super shy high school student and the only person he can talk to is his childhood friend, Mutsumi Yozakura. It turns out that Mutsumi is the daughter of the ultimate spy family! Even worse, Mutsumi is being harassed by her overprotective, nightmare of a brother, Kyouichirou. What drastic steps will Taiyou have to take to save Mutsumi?! A spy family comedy - the mission begins!

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.

Yuu Ayase, son of a late legendary actress, is overwhelmingly mediocre. When he’s invited to stay with his mother’s friend, Yuu is shocked to find out that he’ll be living with three prodigy sisters who possess both beauty and talent…and who rule his new school as the Three Emperors. Can Yuu manage to melt the sisters’ cold hearts and fulfill his mother’s last wish for him to build a happy family?

The manga centers on high school student Ito Hazui. During her spring break at the end of her first year of high school, Ito's mother remarries, and Ito moves to live with her new family, becoming Ito Narita. Upon arriving at her new house, Ito is shocked to learn she now has four younger step-brothers. Ito tries her hardest to get along with all of the new members of her family, but the eldest brother Gen is a bit cold to her. However, under his aloof facade, he occasionally shows his kindness.