He is a reserved, soft-spoken, individual with a deeply analytical mind. Shuichi is often self-deprecating and struggles with feelings but he is also determined and courageous He is logical and often thinks ahead to solve problems. Shuichi is also empathetic tho he sometimes struggles with expressing his emotions. Despite his shy and anxious demeanor, Shuichi shows glimpses of a more assertive and confident side when he is pushed outside his comfort zone or when he feels a strong sense of duty.