beta
Let me guess... ML will start making the orb, meanwhile the obsessed king finds MC, and since ML can't use his powers while making the orb, MC ends up dying, and since carrying the orb on his own is a great burden, ML gets ill, loses memories and falls into a coma.
Altough I don't really see, how MC can have descendants with ML as their guardian... All MC's family is dead, I really doubt that either the king or the ML would let him have a wife and kids, and even if we assume that today's family are the descendants of the king (after all, he and MC are distant family), why would ML be their guardian? Unless ML finds like a long lost sister or nephew or something.
And I bet, that the king, who is clearly reincarnated as MC's older brother, will be a major pain in the ass in the present world. I didn't like him since the moment he appeared, he has the typical slimy villain attitude.