Ishibashi Boueitai (Kojin)
Ishibashi Defense Corps Individual·石橋防衛隊（個人）
A university student named Kokubunji, known for his rough appearance, undergoes intense daily training to safeguard his friend Ishibashi, who possesses a gentle smile and a soft physique. His responsibility involves monitoring Ishibashi closely during classes, extracurriculars, and holidays to prevent any harm. Devoted to Ishibashi, Kokubunji faces daily challenges that require rational thinking. He engages in a continuous effort to protect his friend from threats, particularly from the university's top student, who is described as having a questionable mindset. The story includes an additional chapter beyond the main narrative.