Kyan, i think you're one of the few commentators here with the ability to articulate the dilemma of this manga.
I fully agree with you that this manga that began with a very complex question of "being". It was sublime to say the least.
But to find it reduced to monogamous couplehood. Idk. I felt so very betrayed by the author. This author dared to challenge our perceptions of "existence", "being" & "identity" through the mc. And as reader, I admit I had high expectations. What a disappointment it turned out to be. The ending was so safe, so mediocre. I'm sure it comforted a lot of readers who thrive on such mundane binaries.
A part of me is angry. This author dared to shake our perceptions of reality but himself could not conceive of a reality beyond that age old monogamy. He asked the question on "being" & "existence" but he either lacked the courage to write uncomfortable endings or he lacked the acumen & emotional intelligence to even conceive of it. And both those reasonings are so just so pathetic
（￣へ￣）
i started reading this because the concept was unique, a human living for billions of years as different creatures learning what life was before becoming human and learning what humanity is. i really liked that ja-in was a villain and had a hatred for humans but i also didnt mind the moral dillemma he was facing when he realised there is just as much good as bad and human emotions can change a lot of things. the only downside the manhwa really has was the pacing, if the whole end of the world thing happened was spread out in 100 or more chapters i think the story wouldve been way better. from the first chapters to him now wanting to die and "end things" we're only 58 chapters in and i think thats what personally kills this story. him meeting humans who treat him with care and affection couldve been longer imo because then as readers we could truly understand why he changed his mind and why hes now siding with humans. apart from that i feel sort of conflicted about this manhwa because it had the potential to be amazing but instead its just okay