Composition-Tell me about my new partner

I have a cousin, she has a pair of watery eyes, a student head, a small nose, and a cherry-like mouth. She is only one year older than me. She and I are very friendly, and some people bully me in everything. Or bullying her, we can always help the other person to get out of it. Even if we can't get out of it, we will find ways to deal with them. So in school or in the streets, every child will leave in fear when they hear our name. If someone becomes our good friend, they will no longer be afraid of being bullied by someone.

Now you know who my super partner is, do you want to be good friends with us?