IMDB : 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.
Don’t choose death in order to protect her, No matter what happens, you must live to protect her.