characters

he need a girl to make his ex girlfriend a taste of her own medicine cuz he caught her cheating on him so he asked the gamer girl that he know online but don't know who she is in real life and ask that if she will helped him make his ex girlfriend "jealous" and he does not know that the gamer girl is his next goor neighbors and is his ex girlfriend step shy little sister who is a 3 year young
what will happened one is his see who the gamer girl is