Houdai, a typically incompetent high school boy when it come to matters of the heart, accidentally eats a full power cupid shot and becomes insanely popular with the ladies at his academy. However, having an entire lifetime’s sex appeal condensed into one day is not without its problems. Our hero finds out the hard way that being Mr. Popular isn’t all it’s cracked up to be. Houdai must somehow resist every cute girl that throws herself at him in an effort to find his true love! If Houdai doesn’t find "the one" and confess to her by the end of the day, he will be forever alone.