We focused on the "600 years ago" storyline for literally 80% of the series, when really the "1,000 years ago" story was all of the issue, which we crammed into the last two episodes. Also, I was *invested* in Sang Un and Hwal's relationship and it all amounted to a 30 second scene of reincarnated them some 50+ years later, where they have no memory of each other or the past 1,000 years that they just went through...-_- I understand that that was kinda their goal in the first place-- to break the chain of reincarnated agony and live as humans-- but BOI. I'm here for the fanservice...and I got nothing. :')

Also (and I literally complain about this every time I see it so I apologize in advance).....I have never seen an instance of time gap that I thought was necessary or even good. This was not an exception. I just feel so cheated after building up all this energy and emotion in a series and then having all that dissipate in one "50 years later" scene. ¯\_(ツ)_/¯