Hustle_Big Sis (Patreon)

Pizza Girl's mysterious older sister was teased at in the latest cartoon. Will be trying to hint at her a little more in future contents, but the short of it is she lets her younger sister live at (one of) her really nice apartments on Santa Monica... She works as a really successful office lady - but her supercar NSX hints at a secret street racing career. 

Pizza Girl tries not to take advantage of her hospitality too much.