So Frisk is a boy and Betty is a girl?
Betty strictly does not have a gender, she LOOKS like a girl. The spell can look like a male or a female depending on the host used for the soul of fear.
This one came out looking as a female.
As for Frisk I’ve decided to make it a MALE.
The whole point of undertale calling Frisk a they is for us to CHOOSE a gender. NOT to leave them without one.