He basically got his revenge already. He killed the demon that caused the original time line's Hugo to become an evil tyrant. That was the finale of season one. Once he got rid of the potential for Hugo to turn evil tyrant, he got rid of the source for his revenge.
thank you for the spoil.
Wait, you still haven't read it?
im still in the early chapters but its okay im good with spoilers.
If you dont mind then i can tell you what hes doing in season 2,........
He is now hunting demons
go on spill (▰˘◡˘▰)
(￣∇￣")