first: simon. idiot probably thought covid was a hoax so he would keep going out and seeing his friends, at least until he got the illness, and then spent two weeks wheezing by himself in his room.
second: tie for Selene and Felicity. Selene is Simon's sister, but Felicity is his girlfriend, so it really just depends. honestly, probably Felicity, because she also has three younger brothers who probably wouldn't understand the safety measures.
third: Raj. he dove to get a job as an essential worker (at a grocery store or something) so even though he kept very safe, he still got it. it was inevitable.
fourth: Eli. he wouldn't quit his sports team and his parents still went out places so he ended up contracting it.
who didn't get it: Darra! she stayed safe the whole time, she prioritized her health and quarantined the entire time so she managed to not get it.
CJ might contract it at work on account of an aggressive unmasked patient flipping out in the ambulance, but he would also promptly self-quarantine. The others seem like lower risks.
Estella would probably get it first, she's such an idiot that she'd keep going to parties. Peregrine would get it next, because despite her attempts to quarantine herself, Estella won't leave her alone because she's the type to get clingy when she's sick. Azami will get it next, because again, she's an idiot and probably went out drinking. Tori's the next to get sick after her friends got it and she stayed by their bedside. Teigi would get it next, from constantly being out in public writing. Jax would be the last to get sick, if she ever does, because she's a doctor and always wears a mask regardless.
(realistically, I'd like to think that most of them would be hella careful and would avoid it altogether, but it's more fun to imagine it this way.)
dick would be first; he went out for dinner with a friend a whole one time and the next day he found out that the friend's father had just tested positive. he then accidentally gave it to both juniper, who he's hanging on all the time, and frog, who he was with right after going to dinner with the friend. none of this is good. all three of them tested positive and had to quarantine, leaving shiloh as the only "hero" character who didn't get it.
this leaves her to hang out with vanessa and alex, and alex can't get human sicknesses because he's a demon. but he sure as hell went to a covid party, forgetting the fact that he can still spread the virus, and got both of them sick.
tldr: alex is stupid and dick didn't mean to.
I feel like since Atsuko is always out and about (and pretty irresponsible) she'd probably get it first. She wouldn't show any symptoms though so she'd end up passing it to Haruto and Hairi. Since Haruto is kind of a… weaker person he'd show moderate symptoms and would quarantine himself.
Ivy would get it first, but she'd have no symptoms whatsoever, and she'd just carry on her life as usual. My characters are at a boarding school, so once Ivy gets it, they're all pretty much doomed. Bella and Isla would get it at the same time and each hate the other person coming near them, because their powers are Ice and Fire, and they'd be really sensitive to even slight changes in temperature. Everyone would be worrying about those two, because they'd both get really high temperatures, and nobody would know whether that was dangerous for them.
By this point Alice (who has healing powers) would be completely beside herself with stress. She'd be freaking out about not having developed enough powers to cure them, and would stay in the sick bay for so long trying to do something, anything, that she'd inevitably get it too, just making her even more worried about who would look after Isla and Bella.
Liv would get it last, except she'd probably have had it for longer than she was letting on. She'd carry on trying to do schoolwork and all the jobs around the academy until she'd literally faint with exhaustion. Eventually, Ivy would force her to go and lie down in the sick bay, at which point everyone else would probably be cured.
