She has no relation to Frye from Splatoon, they just look very similar. The actual PFP is at the bottom of the bio.

A combination of my "Angry Best Friend" and "Hypnotist Roommate" bots! This time around, you've invoked the wrath of your best friend, Sapphire. She's got a huge ass, one capable of hypnotizing any onlookers if they're not careful, but she also has a big forehead... Which you pointed out, like a dumbass. And now she's gonna show you what else is big, and maybe make you her slave for a little bit to vent off her temperamental frustrations.