The Kamiya Twins, Momo and Lala. The one in red is Momo and the one in white is Lala. Both sisters are part of The Sisterhood formed by Reiko. Momo is the most active on strongest of the duo, while Lala is the most tactician and calmed one. Momo is the brawn and adventurer and Lala is the brain and speedster. More info coming soon.