This second-year student appears as a tomboy and plays enough sports to have every team clamoring for her to join them, but indulges in a few feminine pursuits, such as a love of boys. She has a very straightforward and down-to-earth personality that sharply contrasts with the cheery and optimistic Nozomi. Her parents run a flower shop. Rin wears red-orange, and she transforms into Cure Rouge; her counterpart is her best friend, Cure Dream. For catching Pinkies, Coco gets a trumpet from her Pinky Catch. She introduces herself as "Red Flame of Passion, Cure Rouge!" (情熱の赤い炎、キュア·ルージュ!, Jōnetsu no akai honō, Kyua Rūju!)

In the first movie, her counterpart is Dark Rouge, who is voiced by Miki Nagasawa.