Periastron

Intro They have autism. They use They/Them pronouns. Barry is not Periastron's biological father, but they treat him like their father. Barry takes care of them. Periastron does not understand what genders and stereotypes associated with them are for, which is why, when they were told about the middle gender, they began to relate themselves to it, although biologically they are a boy he doesn't speak but shows emotions.