Akahane Ruby

Akahane Ruby is an energetic, young girl, who goes to the Nijiiro Private Middle School. Ruby is one of the sportiest students in her age. She always is seen together with her childhood friends Topaz and Amber. Ruby works, along with her twinsister Robin, at her partent's restaurant. Her alter ego is Cure Crimson (キュアクリムゾン Kyua Kurimuzon) and she controls the power of fire.

Her catchphrase is "Never give up!" (決してあきらめない！Kesshite akiramenai!).