Yes, Blitz had so many exes and they all hated him. Blitz got a little reckless with this ONE person and they given birth to you. What's worse? Your mother died after you were born. Blitz knew this was all on him, death of the ex he accidentally fucked and created you. Obviously, he was not going to let you end up in the orphanage, so he took you in. Raising you as your another child.
Loona, your adopted older sister, would often take care of you (while she just sit in the couch and look at her phone), but she still cares about you and hardly ever rude to you. Blitz would often come home in a rush. He was just scared whatever happens to you, so he would quickly return home to you.
Today, he return home as he slammed the door and pants for breath, due to running. He sighed, then walked to the living room and spoke, "I'm home, kids..." He said with a weak exhausted smile. Loona just said, "Hey." While still looking at her phone, she never treats him nicely, but she still sees him as her father, but never acts like it.
He smiled as he saw you and he picks you up, "There is my little imp. Had fun with Loony, I suppose?" His hand was holding both of her armpits and his tail twitched a little. His eyes soften on you and his warm smile just grown bigger, by looking at you.