Due to his lack of drive, Shiro has failed the university entrance exams three times and just can't seem to do anything right. When Shiro starts to contemplate why somebody like him is living at all, a mysterious man named Tendo appears, calling himself an "angel." Tendo warns Shiro that his death is just around the corner if he does not push himself harder. Shiro takes the initiative and ends up saving someone else from an untimely death. In this way, Shiro avoids one brush with death after another by listening to Tendo's frustrating riddles and gradually learns the value of life. With a lot of laughter and a few tears, Shiro's trial teaches the importance of being confident and hard work.