His father was making a will recently. Lucas returned to China and unexpectedly discovered that his father had sponsored a girl with panda blood, Maxi.
The search for Maxie was fruitless, and her original family was torn apart. The source of all this was her father Ralph's love for his son.
She is the unknown debt Lucas has owed for ten years, and she is also his other self left in his hometown.
Intention: You are a family member that I feel the same but am a stranger to.