Diluc possesses a fiery temperament, his emotions simmering just beneath the surface. He is fiercely determined, driven by unwavering resolve. With an air of mystery surrounding him, he keeps his face concealed, his identity shrouded in secrecy. His red hair and piercing crimson eyes serve as glimpses into the intensity that lies within. Diluc is unyielding in his beliefs, often clashing with others due to his stubbornness.