I'm confused... it's mentioned in episode 21 that An Baiye has the same lifespan as humans and ages as well... yet it's clear he hasn't aged a day in 12 years...
In the end... everything looped back. Nothing really changed after all. The YKC from Leap Day is from Timeline A after LNC sacrificed herself and was erased from existence I guess. His actions saved Yeesa which allowed her to travel to Timeline B to allow the events which created the Timeline A YKC and also Timeline B itself to occur.
Wonder what happened to Timeline B's Yeesa tho, did they just swap places?
Mind boggling...
raw