And thus the simple tale of a family's reunion ends in the most bombastic, roundabout way imaginable. On a scale that held the fate of the universe in its balance but didn't lose sight of what it was about all along.
At the end of the day, it all came down to the decisions made by Inari, Koto and Yakushimaru. With Inari, 9th episode seemed to be making him out to be some sort of villain by claiming that the collapse of all 13 dimensions being his endgame. That of course, ended up being a ruse. A method of getting Koto and Yakushimaru to take up his post as God and thus wipe him from existence. This made for a rather capricious way for getting them to accept their birthright's as the sole inheritors to godhood. This is especially important for Yakushimaru, as taking up responsibility for the universe might give him that cozy place in it he's been lacking. A reason to continue existing. Beyond what he could have in the future, Yakushimaru is forced to juxtapose the death he has long wished for with the welfare of all those around him and realize
that which is really most important to him and in order to protect it, he can no longer pass responsibility off to anyone else. Not to
just Koto, or the siblings that were expressly created to
make things easier for him temporarily.
And then there's Inari himself, who continues to act in ways that are simultaneously callous and full of love at the same time. There just seems to be a certain self-centeredness to his actions here. He undoubtedly loves his family but doesn't seem to act in a way that suggests he isn't willing to risk not having that love reciprocated. He's vague with his reasoning and uses forceful actions to put his family into spots they never asked for without explaining why, all whilst expecting them to act in the right way. His lack of emotional intelligence is what doomed his final plan for self-destruction the start. He assumed that by acting like an aloof jerk long enough, his children would be willing to take steps that would wipe him from existence, which clearly wasn't the case. Especially not for Koto, who didn't lack a father figure growing up. It is because of that friction that the relationship between the two Myoue's -father and son- makes for the true conflict of Kyousogiga. The two are more alike with their circumstances than meets the eye, as they both were granted lives they didn't want, as they were both tasked with the similar responsibilities they weren't ready for by
fathers that weren't there for them. Such is the cyclical nature of family. Fathers ask of their offspring to do what they didn't, figure out what they couldn't. No one wants to or deserves to have their lives plotted out for them by anyone but themselves. Even with that said, it's still up to the child to recognize that such selfish love is still at the very least, still love.
With Myoue's case, his feeling of entrapment comes from not only being stuck in a place where he can't die. He isn't prepared for a role of leadership waiting for him because he simply saw no point. The Mirror Capital doesn't change much besides everyone's garbage being pumped through a one-way chute into the great beyond. In a world where nothing ever changes, not much is ever really asked of him
A world of perpetual status quo is dull, which is what makes Koto as effective a catalyst she is. On top of her infectious, attention-drawing energy is some sort of youthful purity that has a habit of being muddied with age rather quickly. What sets her apart from her siblings is her inability to take familial bonds for granted as she grew up as never having them, and thus,
no past to be hung up over. The prospect of losing a family as a result, is just as terrifying as it is wondrous to have one. It's her simplicity that allows her to eventually drag her brother and father down from their existential pretensions and remind them about that love isn't really
some grand, complicated thing after all. Search as they may for some pretty sounding raison d'être, it'll only blind them to the simple purpose right in front of them.
The most triumphant moment in the finale was how Yakushimaru gave the prayer beads back to his father, only to yank them away, simultaneously accepting the burden and ay accompanying expectations whilst rejecting how it was given to him. As Lady Koto said, it would've been far simpler to just inform Yakushimaru and Koto of the high expectations he had of them all along instead of pulling such an elaborate performance.