Rin Natsuki is one of the main characters in the anime series 'Yes! Pretty Cure 5.' As Cure Rouge, she is the Pretty Cure of passion and fire. Rin is known for her athletic skills, tomboyish personality, and strong sense of loyalty to her friends. She often acts as a big sister figure within the group. Her fiery determination and supportive nature make her an essential member of the Pretty Cure team, helping to fight against the forces of evil that threaten the world.