Rin Natsuki

Rin Natsuki appears as a tomboy and plays enough sports to have every team clamoring for her to join them, but has always time for her family and friends. Her parents run a flower shop which she often helps in. Her alter ego is the Cure of Passion, Cure Rouge.

Rin has a very straightforward and down-to-earth personality that sharply contrasts with the cheery and optimistic Nozomi Yumehara, which is shown that she has a big-sisterly attitude toward her best friend. Though many people think of her as tomboyish, she indulges in a few feminine pursuits. Throughout both of the seasons, Rin shows a passion for accessory design, usually the one in charge for designing what Natts House is selling. Rin has openly admitted that the thing she is most afraid of is losing her loved ones, most noticeable Nozomi. Beside of that, she also has a fear for unnatural things "Full Throttle Passion, Cure Rouge!", and when she was a child, used long time to recover after getting startled but when she and Nozomi were little, she found Nozomi crying and comforted her. Nozomi did the same too, when Rin was scared. Sometimes, when Rin runs into some troubles that really frustrate her, she could become hopping mad, especailly with her favourite sports, such as soccer.