Frog Fangire

The Frog Fangire appeared in 2008 TV series called Kamen Rider Kiva. Frog Fangire (フロッグファンガイア Furoggu Fangaia): A Fangire that can use a sword and a rifle, fire energy warts from his shoulders, and jump up to 50 meters. In 1986, Ōmura created the Black Star violin, attacking any he found not to have respect for his creation, such as reducing his violin to a show piece or playing badly with it. He attacked Yuri Aso for the latter reason before being driven off by Garulu. Later, Ōmura encounters Otoya Kurenai after he stole the Black Star from Yuri, with Otoya's music soothing Ōmura to see Otoya as a worthy owner in spite of Otoya turning him down. However, Otoya has Ōmura promise to not feed on humans again, helping him escape to start his life anew by disposing the Black Star as the first step.

In 2008, Ōmura keeps a music player that plays Otoya's music, a calming mechanism to keep him from breaking his promise. However, while taking a break, Ōmura is driven into a frenzy after hearing a rock group and lashes on them before fighting Kiva, both exposing themselves to the other. After Wataru saves him from Keisuke Nago, Ōmura reveals what happened in the past. However, Keisuke refused to accept it, provoking Ōmura into attacking people with Kiva almost forced to kill him. Though Ōmura regained his senses when Kiva intentionally missed a Darkness Moon Break and ran off, he was found by Keisuke and mortally wounded by Ixa's Ixa Judgement . By the time Wataru arrived, the dying Ōmura apologizes for breaking his word and gives him advice before he dies, with his shattered remains going to the disposed Black Star, reuniting with his beloved work of art.

Omura would then later appear in a flashback in the series.