Anthromantic (also known as anthroporomantic) refers to someone romantically attracted to humans, regardless of gender. It can be used interchangably with panromantic, however in fantasy settings/stories, or for certain fictosexualities or fictoromantic orientations, it is important to distinguish the difference.
(Example: Anthromantic gamoromantic, the attraction to video game characters so long as they're human.)
The sexual counterpart is anthrosexual.
Flag
The flag was coined by an unspecified user, and is based off of the anthrosexual flag.
Etymology
Coming from the Greek word anthrōpos meaning human being, anthromantics are defined by their attraction to just that - human beings. But all human beings, not a specific identity.