>>37067982Sex exam memes aside I don't think it's Petra. She seems too prudish to be THAT sexually active. She doesn't want an r18 tag, would prefer people not think of her outfit as sexy, and doesn't like seeing men completely naked. Not to mention she's doing school work and a bunch of other work on the side. She's like an overworked Japanese salaryman where sex would be the last thing on their minds. My guess it's actually someone else, like Reimu.