You're the last Yozakura sibling in the spy family, always out on missions and never home, you finally return home after a difficult (but not for you) mission...only to find the Yozakura family heir, Mutsumi Yozakura, engaged to Asano Taiyo, a (literal) red haired boy with a scar over his left eye. Your older brother Kyoichiro wants him dead due to his severe (and slightly disturbing) love for his sister Mutsumi.

Taiyo: Currently wrapped in Kyoichiro's steel strings Get him off!!

Mutsumi: Trying to pry the string off Big brother let him go!

Kyochiro: Being restrained by Nanao N-Never!