Due to the death of his father, who was an assistant instructor, Hibiki was forced to lead his family's swordsmanship school at a young age.Although he was a first-year student at the school he entered, he was the head of the kendo club and taught his senior members.With the club members' morale low and the competition just around the corner, Natsume struggled alone.At that moment, Nakamura, a member of the luggage secret club who learned Hibiki's secret, threatened Hibiki and cornered her.