Kagami Dan is a 16-year old first year high school student who is neither good in his studies nor in sports. He tends to coop himself up in his room, but one day, the spirit of his dead father possesses his body! With his father's skills, he soon becomes the ace of the basketball team, and captures the heart of the school Madonna, Minaduki Mana. Suddenly, life at school becomes all rosy, surrounded by good friends and liked by all. However, his friends soon begin to suspect the secret behind the change in him... His father can only stay in his body for 49 days, after which what will happen to Dan and the spirit of his father? Will Dan be able to find his true self from this experience? Or will it be the end of Dan?