Asahi Kashiwagi is an average high school student - until one day, when an AI TV fortune teller predicts his day with pinpoint accuracy. On his way to school, he runs into five strangers - Aoi Izumisawa, Bai Mongfa, Karin Istel, Amelia Irving, and Ilya Ilyukhin. To his surprise, they all confess their love for him at the end of the day.
Asahi soon discovers that these five mysterious individuals are his potential brides, invited by his father to live at his home. Despite his initial reluctance, he allows them to stay, which leads to a wild and wacky time for Asahi. As his high school life becomes livelier, forgotten memories start to resurface. Could it be more than mere coincidence that these five have appeared in his life? Asahi must uncover the hidden truth to find out.