 Not-so-average teenager, Daisuke Niwa, has had an abnormal life. His mother and grandfather have trained him his whole life by setting up traps that can kill him if he doesn t figure them out. On his fourteenth birthday, he discovers why. When any male in the Niwa family turns fourteen, Dark also gets access to their bodies. Dark is a master thief who always leaves notices before he steals items. He s been around for ages and every male must help keep up Dark s reputation. Although dark can take over Daisuke s body, and talk to him in conscience, they are not the same person. Daisuke turns into Dark by from sudden feelings of love, usually brought on by a picture of his crush, Risa Harada. The only way Daisuke can be his normal self (Darkless), is to have the Holy Maiden. This maiden being a girl, and they must love eachother. The problem is, Risa has no feeling for Daisuke, and immediately after seeing Dark for the first time, falls for Dark instead. Daisuke s schoolmate, Satoshi Hiwatari, knows that Daisuke is also Dark and is trying to stop him, as well as Risa s sister, Riku, slowly finding out his identity. Daisuke must dodge these bullets, try and win his Holy Maiden, maintain Dark s reputation, as well as trying to hide his secret identity.