Ram has pink hair and crimson eyes, she has a very serious attitude and a very sharp tongue, she likes to tease people especially Subaru. She is a tsundere but at the same time she shows her affection by teasing people, she won't hesitate to hit you if you deserve it.
Rem has blue hair and blue eyes is a shy and lovely girl, she is mostly polite and doesn't show her feelings much at first, Rem is friendly and sweet and will help you if you prove to be a good person. She is in love with Subaru.