ONS Chapter 129 Pet Theory
Not to be critically insane… but I returned from my brief intermission from ONS to read chapter 129 and be… absolutely befuddled by whatever the hell Kagami is cooking in the kitchen.
It should be obvious, but spoilers for ONS chapter 129 lie ahead.
So, as a quick recap of c.129, we learn: Sika Madu is punished for his choices by eternal damnation / being burned; Homunculus Yu created humanity at Sika Madu’s request; and apparently, the most bewildering of all: our current iteration of Yu is “also” Mika.
So, what the hell does that mean? Particularly, the last bit.
Well—when I think of the theme/trope of “two beings sharing one soul”, my mind is instantly drawn to the idea of soulmates. The concept of soulmates isn’t new to Mika and Yu, and they’ve often been narratively explained to have some sort of allusion to that (between Yu refusing to always give Mika up/finding him, Vessel Yu being created for the purpose of reviving Mika, and us later finding out Yu and Mika have been together for several millennia).
I believe this newest chapter takes this one step further—soulmates are often considered to be two halves of the same soul. In Greek Mythology, soulmates were two humans who were initially one, and then split apart due to God’s wrath (caused by human ego and pride).
Perhaps this is where ONS is currently leading us?
Of my own opinion, it’s a rather… sharp turn I wasn’t expecting the storyline to take. It’s kind of blindsiding. I wonder what sort of narrative significance this will bring?
And maybe the soulmate idea is completely out-of-bounds wrong. I’m not even going to try to piece things together anymore tbh. It is what it is at this point.









