It going to be fine

(Y/N) is Markipliers sister she love him with all ur heart but hate his alter ego when his best friend Jack comes to say mark wants u to help him keep calm and out of trouble. What Mark doesn't know is that she has a crush on Jack but u don't know that Jack and marks alter egos kinda disagree with some of the guys chooses. can she keep Mark check? Will she see jacks alter?

(Under editing)