Daiichi Tsukiyomi(Tsukiyomi Daiichi): Daiichi is Rei's father and the ex-husband of Diana Tsukiyomi. He works as a business man and is described as being handsome and very wealthy. He lives in a condo with his family, he often calls Rei "Rei-Rei" as a nickname. He is kind, charming and is very popular with woman, shown when he was easily able to enchant Rei's friends who became flustered around him. This slightly annoys Rei.