Yokaze Ryu (夜風.龍 Yokaze Ryū?) is a Former Ensign, and Current Lieutenant in the Marines. He is feared across world as The Demon God (鬼神 Kishin?) of The Marine and The White Demon (白鬼 Hakki?) of Mariejois. He was first introduced as a "Warrant Officer" (准尉 Jun'i?) sometime during the Spike Arc. He is one of two member's that make up the Fearsome Duo known as The Twin Demons of Mariejois the other being his Partner and Best friend Marine, Lieutenant Kazama Hiroshi.