Mission: Yozakura Family

In a car accident, Taiyou Asano lost his whole family and then he started to live alone because he knew no one. He only knew his childhood friend, Mutsumi Yozakura. She is the only daughter of the Yozakura family who is famous for strongest spies in the world. Her elder brother, Kyouichirou Yozakura was so obsessed with her safety and wanted to save her in any case. A lot of their enemies are after them, and for that, Taiyou must have become a strong spy so he can protect Mutsumi from all this. On his journey, he knew a lot of dark secrets.