Despite being only sixteen and still attending school, Kurenai Shinkurou has already mastered an obscure martial art and built a reputation as a seasoned mediator. When his boss and mentor, Benika, offers him a more demanding assignment, Kurenai is tasked with protecting seven‑year‑old Murasaki Kuhoin. The child’s affluent and influential family poses a serious threat, pushing the job into a dangerous zone. Now the stakes rise as Kurenai scrambles to keep Murasaki safe and quell escalating conflicts.