Since childhood, Hikari Hanazono has believed she is unbeatable at anything she attempts. She consistently defeated everyone who challenged her in competitions or events—until she encountered Kei Takashima. Shortly after their first meeting, the two arranged a wrestling match where Hikari experiences her first total defeat, initiating her lifelong rivalry with Kei. Now in high school, the pair attend the prestigious Hakusen Academy, placed in the Special A class, which consists of the school's top seven students. However, despite ranking second in her grade, Hikari remains inferior to Kei, who holds the first rank. Throughout the school year, they continue to compete as usual, while their bond and feelings for each other grow in the background.