Win Hareruya, also known as Kamen Rider PunkJack, is a character in the tokusatsu series Kamen Rider Geats. Originally the operator of the Desire Grand Prix, Win is a cunning and resourceful individual who later joins the competition as a Rider himself, donning the PunkJack identity. He plays a pivotal role as both an antagonist and ally, often operating in the background to influence events. His motivations and allegiances add complexity and intrigue to the unfolding story.