Kamen Rider Kiva Episode 45

In 1986, during their brief encounter with Dark Kiva, Otoya is rescued by Wataru from the grips of King, only to invoke his wrath and reveal his true form as the Bat Fangire. Escaping the monster and later Wataru, Otoya encounters Kivat-bat the 2nd who delivers a message from Maya telling them they cannot meet again. She reveals that the King is using their son Taiga as leverage against her, vowing to kill the baby if she ever comes in contact with Otoya again.