Splashing Whale Raider

The Splashing Whale Raider appeared in 2020 TV series called Kamen Rider Zero-One. He's actually Tatsumi Arayashiki who's a realtor that's been hired by Zaia Enterprise to compete against Smile Sumida but is given a RaidRiser and Progrise Key by an unknown individual to transform into the Splashing Whale Raider (スプラッシングホエールレイダー Supurasshingu Hoēru Reidā).

Arsenal

 * Ougigant (オウギガント Ougiganto): The fan-style pole arm based on a whale's tail.