Talk:Demon King/@comment-2A01:E35:8BE6:C3F0:CE5:B196:F757:1234-20171226212614/@comment-3174069-20171226225305

Probably the elder sage adopted Merlin. I think that Merlin only consider the Demon King as his biological father, I think the same with the Supreme Goddess since both curses her brother and sister (Meliodas and Elizabeth).