Chang Nian was picked up by the old man.
The old man taught Chang Nian a craft.
So Chang Nian cannot have children of his own.
Because of bad luck, something happened to the old man later.
Chang Nian met Wu Busi,
What a coincidence, Wu Busi died.
So Chang Nian used this skill to make Wu Busi
Sewn up,
Then Wu Busi lived
Intention: Love can overcome hardships and bring you to my side