Momo Yozakura is the husband of the late Rei Yozakura and the father of the current head of the Yozakura Family. Due to his actions, he is a major antagonist of the series. Momo married Rei Yozakura and joined the family spy business. During his time with them he was trained by Ban Yozakura. Momo was the cause of the kidnapping of Rei and Mutsumi. (Source: Mission: Yozakura Family Wiki)