The red colored girl is Kylie

The blue colored boy is Noah

They're siblings. Noah is usually calm and cutely stupid, while Kylie is angry and smart.

Kylie tries to literally delete her brother, while Noah tries to protect her little sister from getting into trouble.

Noah is older than Kylie but Kylie is taller than Noah. But they have a bigger sibling named Harper but I screwed up their design so Harper is gonna be on another post.