En's identity distortion enchantment manifested as a result of her chaotic and splintering transformation. her own identity was nowhere near fully formed by the time she was transformed and as her fragile psyche fractured under the stress and the immediate confusion about who she was and what was happening to her, it concentrated into this enchantment that is now her greatest shame.
as she's always had it, she has little control of it and no real understanding of how to function without it, and it is almost always visible as a white wisp above her head. though this enchantment has helped her keep parts of her own identity under control, the confusing and unsettling feelings it takes from her gets projected onto others. now after many centuries, the effects are often subtle - someone losing track of where they were going, forgetting what they were about to say, and other innocuous things. but when it shines brightly and En is feeling at her most disturbed, this enchantment can completely warp someone's sense of self, a distressing and traumatising experience that has caused and can still sometimes cause others to get completely lost. En will almost always transform those that get lost because of her enchantment out of guilt.