I didn't quite understand the ending, either he got reborn as an alien or a microorganism. But at least there was an ending.
It was quite the emotional read despite mixed feelings on how much combat there was with the steer and military.
I think the implication was that the Earth is considered a single being, and Ja-in's final "reincarnation" was to become the Earth.
The scene from Chapter 63 where he stood there gathering blue energy:
was foreshadowing.
My problem with the ending is that all of his past reincarnation started from the birth of that life; we see this when we're shown him being birthed as Ja-in.
So it feels out of place that he's all of a sudden the Earth now.
The only reasonings I could think of:
- The Earth is considered "newborn" now that Ja-in's become the conscience?
- Ja-in always the Earth, and his past lives just offshoots - like how the Steer had a main body and multiple clones.
- The author just wanted to make a point of how all lives are/will eventually become one with the Earth