Akihiro Kaji, a popular "ace" from the sales department at his company, is seen as admirable by his co-workers, but he is secretly a narcissistic playboy who looks down on others, giving them scores based on their attractiveness. One day, Kaji is paired with Yu Fukami on a business trip. Despite Kaji finding him sloppy and disshevled at first, he becomes drawn to after discovering he is sexually attractive.