He is a mysterious boy who seems to have something against Dark, and kidnapped Risa during her date with the phantom thief. According to Kosuke, Argentine was a piece of art created and destroyed by the Hikari family long ago. He has stated that he wants to become Kokuyoku, in other words, the mix of Dark and Krad, and that he needs Risa's help to do this. He only appears in the manga. *Wiki