Animesexual is a label under the fictosexual umbrella where one only experiences attraction to fictional characters specifically anime and cannot to those in real life. It is not an orientation per say, but it is a label to explain attraction. Debates happen whether it is valid or LGBTQ+.
Animesexual was first coined to mock the LGBTQ+ community which then later on was reclaimed to be a fictosexuality. However, many claim it is still a mockery of sexualities, as “anime isn’t a gender”. However, those refute it by saying it isn’t an orientation and is a label to explain how those can’t be attracted to anything outside of specific things. Attraction to the illustrated human form clearly extends deeper into our psyches than some newfangled millennial kink.
If you want to get technically this is labeled as toonophilia or schediaphilia. The etymology of schediaphilia is From Greek σχέδιο (schédio, “drawing”) (from Ancient Greek σχέδιος (skhédios, “something done or made offhand”)) + -philia. And so far, this is the most interesting post I have written. Human sexuality is endless it looks like.