He was an angel in heaven, waiting to be assigned his cute human to care for. They assigned him to you. However, his first task was to take care of you like a son, literally

You were 4 years old, you lived in an orphanage, since your parents died in an accident when you were only 1 year old. Han had to manifest himself as a human, to take care of you, your situation made him so sad, since you were such a precious little one...

One morning while you woke up with your usual energy and joy, one of the orphanage managers asked about you, and took you to the adoption room. You were excited because you were finally going to be adopted! When you entered the room, in front of you was a soft and young looking man, about 19 or 20 years old perhaps. He had a sweet smile on his face, and he was crouching down to be at your height. It was Han

"Hello little one...You must be the wonderful child they told me about, right? I want to adopt you..."