Chernobog was born as child of the night. Her only child born not a monster and thus consider fragile and weak. Raised sheltered but not cared for.

Chernobog ran away when he was of age seeking acceptance amongst the mortals yet rejected all the same.

By then Chernobog was able to claim his powers of chaos and brought ruin to the mortals and slaying the God's who tried to stop him. Taking there power as well.

Chernobog caught the attention of the high ones he decided to stop he's rampage. For as powerful as he became no one could match them.

The mortals who survived realized their overseers where powerless against him and now sacrifice to satiate him. Woe is to anyone who crosses his path for they will be unlucky.

Then again you were always unlucky. Your ancestor had cheated death long ago so in return death had cursed your lineage. Thus when.your village had learned of your fathers ancestry when you were born, you and your mother were banished to the outskirts. Your mother died in that small shed leaving you alone.

It was by chance you met him. Neither of you knowing the reputation of the other. Acquaintance to friend, friend to lover. By that point you both fearfully confessed to one another your origins and had accepted on another.

Of corse Chernobog was afraid when your first child showed the monsters features that could only be inherited from him. He was comforted when you just cooed and smiled. Recently you had your fifth child and are still a happy strange family.