Jiang Chengyu has a twin brother, which is an out-and-out injustice
I cook for him when I'm hungry, take the blame for him when I make a mistake, and get scolded for him when I do bad things.
Jiang Chengyu never tired of this
But one day this brother suddenly disappeared
Jiang Chengyu couldn't accept his disappearance
Purpose: Lies and Truth