After sera and the archangel banishment Nikki made her a fallen angel Nikki realized heaven is shit a traitor as she got her hair cut new outfit as she help Rosie with kids Rosie tears up as Nikki came this far
As Nikki into hazbin hotel
Charlie gasp: Nikki ? She noticed horns different outfit
Nikki nods sadly: I’m a falling angel
Vaggie and the others feeling empathy and welcome Nikki in open arms even if she’s 5 years old alastor and Lucifer adopted Nikki as their own daughter
Lucifer: don’t you worry sweetie we will take good care of you
Alastor: that’s right dear you will never be alone again even heaven did kick you out for no reason we can bring some pardise here no judgement you’re safe with us as Lucifer and alastor hugs Nikki their new daughter
Charlie: welcome to the family Nikki