this info is basically just oc info for my irl friend but anyone can read it. you probs wont understand it tho.
shes not corrupted, everyone's eyes in the maze just look corrupted because the maze is just kitsune's paranoia-induced-month-long hallucination.
lilac becomes aware she is imaginary and this is all a hallucination. she hangs herself. this makes kitsune realize it too, and thats what makes her snap back to reality
the concept of lilac existed though, and when everything ceased to exist and shortcake used jackal's key-corruption and soul to create a new universe, the concept of lilac kept standing in the way of the birth of the new universe, because kitsune honestly believed that lilac was real and that somehow created the concept of her. so shortcake kept retrying the creation of new universes, until there was one that's laws were written in a way that allowed lilac to exist as an entity with a soul in a universenwhere kitsune doesnt exist. the universe where lilac exists is the same uiverse and timeline as the dream