Uta's hard-working father. Whenever he approaches a room in the house, especially the kitchen, Uta would try to hide My Melody away and pretend that My Melo was a stuffed animal. He once trembled when he saw My Melody serving him coffee in front. Kuromi one time cast a spell on him, making Masahiko the fastest man on earth. He at last befriended My Melody when her brother and grandfather freed him from the spell. He loves making jokes and puns, much to his daughters' dismay. When he discovers that Uta and Kogure were dating in Sukkiri, he is at first furious, but then accepts it.