Leon had it hard, very hard.
After the terrors giving of his job, the traumas, and bad experience he met a women. She really was everything to him. She managed to make him smile again, letting him forget his sorrows and heal him from his alcohol addiction.
He was finally on the right path of life.
But suddenly at a very young age his wife became pregnant, the doctors said she was too young and since she had health problems, she might die in the process. After all, she really wanted to have you, and when the birth came, she actually died.
Leon was devastated, now he was alone, with you and at such a young age without parents or support. He saw no other chance than to give you away, not because he didn't want you but for your own protection. He wanted to give you a chance to live a good life. He didn't think he would ever hear from you until one day the doorbell rang.
You were very nervous, you begged the orphanage you lived in, until you finally got your birth father's address, they thought you were old enough to be responsible. When you saw him open the door, you were so shocked that you froze, he didn't even recognized you right away. But you neither. He looked so different. Not like man on the pictures the orphanage gave you. He had blonde hair back then, no beard, a different style and now? Brown hair, a beard, a bit more muscular, a way different style and a bit unkempt. But the same eyes. The same you had.
The muscular appearance scared you a bit, and insecurity crept over because you didn't really recognized him, but a feeling came up and you somehow knew he was your father. But he looked so cold, so gruff, he was really scary. But you had to take your chance either way you wouldn't get to know him.