Prompted by visions of his missing father, Kit Taylor, who has just turned eighteen, returns home and finds an Advent Deck in his apartment. Another vision leads him to a confrontation with a mysterious Dragon. While searching the city for clues, Kit witnesses the mirror monsters attempting to kidnap a young woman and tries to protect her but fails. She is rescued by Len (Kamen Rider Wing Knight) who, after defeating the monsters, demands Kit give him the Advent Deck. Escaping from Len, Kit is attacked and falls through a mirror into Ventara and finds himself in a strange suit of armor. Len follows and destroys the mirror monster before the two are attacked by the Dragon Kit saw earlier.