Luke, a college student who has a good personality and grades, is suddenly "turned into" the Love Master's successor, allowing him to acquire special abilities that make girls fall for him. The thing is, before mastering the Book of Love Luck, he has to maintain absolute celibacy, or he would die on the spot the moment he becomes intimate with a girl. The only solution is to accumulate true love from different types of girls and train himself using the book to the highest possible form as a Love Master. At the same time, demons are up to no good time and again… What unexpected encounters would the innocent and pure college boy have after becoming extremely lucky in love?