Hideo Shiina

Hideo is Tsubasa's (and, to an extent, Hikaru's) father. They moved to Hokkaido so he can pursue a career as a baker working at the Ibaragi ranch. When he discovers Hikaru, he is brainwashed by D.D. to believe that she is Tsubasa's long-lost twin sister. (Source: figure17.areaseven.net)