|This article is about a/an character in Kamen Rider Build.|
Haruhiko Wanibuchi was planed to be the first Seito's Kamen Rider. However, his body can not endure enough Nebula Gas, leading to his transformation failing. Later, he was seriously injured by Gentoku Himuro and abandoned by Blood Stalk.
Behind the scenes
Haruhiko Wanibuchi was portrayed by Taisuke Miyuki (見雪太亮 Miyuki Taisuke)).
The kanji Wani (鰐) in his name means "crocodile".