I don't know why some fans see tang san as a villian when even if he can be cruel to his son in law and maybe even his son, he's pretty cruel to himself. Didn't he reborn in the 5th series to find xiao wu? He made his own sacrifices. I say even when he was in his first life it wasn't an easy life. Not even his 2nd or 3rd life. Being a protagonist comes with alot of hardships.