A seemingly ordinary junior high school student named Shion Hiiragi leads a double life as an exceptional bodyguard. His classmate, Emi Zaiin, is not only a fellow student but also the president of a major corporation, a position that makes her the target of numerous assassins. Unbeknownst to her, Shion has been working in secret to protect her from these hidden threats. The story begins in earnest when Emi discovers Shion has been her protector. Rather than pushing him away, the two decide to join forces. Together, they work to maintain their peaceful school life while confronting the dangers that Emis status as a corporate head attracts. The narrative focuses on the partnership between Shion, a skilled fighter living a double life, and Emi, a powerful executive trying to experience a normal adolescence, as they navigate the halls of their school and the threats that follow them there.