Daiki Kaitou is an inter-dimensional thief and a traveler who travels around the AR world, searching for treasures. One day, he was travelling to a world called World of Kabuto. H was doing his thief work, as usual, untill his eyes gazed upon on Tsukasa. He stared at Tsukasa, and his friends, Yusuke Onodera, Natsumi Hikari and Kiva-la, observing their conversation, while hiding behind the tree.