I don't own Axis Powers Hetalia. Hong Kong and England are not being paired together. This is reflecting them as father and child.
Hong Kong loved the house, loved the way the boards creaked under his feet. He loved leaving his finger prints on dusty items while exploring all the rooms. He loved the items too high for his five-year-old self to reach. But the person he loved most did not live here.
The person he loved was a stranger, a foreigner from a land far away. He loved the strange color of the stranger's hair. He loved the unfamiliar words the foreigner speaks, hoping to one day understand the words. He loved everything about the stranger except for the war he brought.
Hong Kong knew he should love his current caretaker, and he did. He loved the way the nation smiled while trying to get him to speak. He loved the way the nation called his name when he was having a bad dream. He loved the warmth in the hugs he always got. But he couldn't love him as much as the stranger.
Hong Kong knew his love was foolish, as he was going against how he was raised. He knew he was going to break someone's heart with his choice. He knew he may cry after he made up his mind. He knew that his life would forever change. But he wanted to go be raised by the stranger. He felt safe in the decision that England would make a better father than China, as he would surely come before drugs.
If only love wasn't blind. If only the child knew, he probably would've stayed with China instead of going with the stranger who supplied China with the opium. But there never was a choice to begin with, Hong Kong simply wanted to believe he was doing this on his own. And like he knew he would, he cried.