This document discusses three characters - Sebastian, a former soldier who lost his leg and career in the army; Kaito, Sebastian's circus friend; and the Colonel, a man with a mental disorder from a bomb blast in war. Sebastian ended up homeless after leaving the circus, always staying cheerful despite his hunger. Kaito accompanied Sebastian every night until his death. The Colonel believes he is still at war, taking on different personalities and demonstrating hatred towards prisoners, ultimately murdering Kaito due to his delusions of power from his military past.