Taiyo Asano has been on his own ever since his aiyo Asano has been on his own ever since his parents died and the only one who seems to parents died and the only one who seems to care for him is his childhood friend and classmate, care for him is his childhood friend and classmate, Mutsumi Yozakura. But Mutsumi has a secret-she is Mutsumi Yozakura. But Mutsumi has a secret-she is the head of a family of spies! And on top of that, her the head of a family of spies! And on top of that, her brother Kyoichiro is dangerously protective of her! To brother Kyoichiro is dangerously protective of her! To stop Kyoichiro from killing him, Taiyo and Mutsumi stop Kyoichiro from killing him, Taiyo and Mutsumi must take the ultimate leap-marriage! Because in the must take the ultimate leap-marriage! Because in the Yozakura family, family cannot kill family.Yozakura family, family cannot kill family. For teen audiences.