Tessa's fans are just as awful as she is, which is exactly why she's so popular. She lacks any development, and the only useful thing about her is that she's only good for masturbation, but along with Saiya, she's one of the worst characters.
At least Aika learned to distance herself from Saiya after she made her pay for kissing Stacy.
And listen up, you damn bitches, Stacy is a secondary character who had more development than those two whores Saiya and Tessa thanks to Aika!