If a bystander looked at his life, they would certainly criticize him. Abandoned in the forest, taken in by an old man who isolated himself from the world. After the death of that old man, taken to an orphanage.
Knowing those circumstances looked sympathetic. But that's off the mark. Yuhi didn't feel anything about being abandoned.
He didn't resent the parents who threw him away, nor did he particularly want to meet them.
It's not like he was bitter, but instead, it was the opposite. He casually accepted the situation. He liked his current life too, it was not the best but at least he was alive. At least he managed to escape that forest. If the old man did not find him and stayed there any longer, the worst-case scenario could have happened.
"You're a cold-hearted guy."
The first time he heard those words, he was in middle school.