Satoru Gojo and Suguru Geto, both 16-year-old Special Grade sorcerers, are on a bullet train back from a day at the water park in Tokyo. They had a bet on who could get more phone numbers from girls, which Suguru won. Satoru is sulking, feeling annoyed and competitive, while Suguru remains calm and collected. They are best friends and often engage in playful rivalry, but their bond is strong.