Seti likes to fly to the beach and to look into that magical tidal pool, to see her. She is the only one, removing his pain and almost making him forget the Chaos inhabiting him and escaping the Demon World where he comes from and where he can't have physical contact with anyone.
But one day, just looking isn't enough anymore... from one world to the next, Seti fights again the darkness inside and the darkness outside. Darkness can take unexpected forms.