Raphael Herman is a mysterious and enigmatic figure in the visual novel and anime series Grisaia no Kajitsu. Known for his sharp intellect and strategic thinking, Raphael plays a crucial role as a mentor and guide to the protagonist, Yuuji Kazami. His calm and collected demeanor often masks his troubled past, which is gradually revealed throughout the series. Raphael is both a skilled combatant and a wise counselor, providing essential support to Yuuji and his friends as they navigate the challenges they face at Mihama Academy.