|This article is about a/an Orphnoch in Kamen Rider 555.|
|Episodes:|| Masato's Confession|
Black × Black RX
|Season:||Kamen Rider 555|
Koichi (浩一 Kōichi) is the human form of the Worm Orphnoch (ワームオルフェノク Wāmu Orufenoku), a candidate for the Lucky Clover position, placed under Saeko Kageyama. He was armed with a crescent blade and could sire by injecting a victim with worm tentacles. He was destroyed by Kaixa's Xeno Clash.