Hasn't seen her in ten or twenty years, runs into her one day at school and she immediately decides they're dating....
To be fair, he eavesdropped on her conversation about how much she loved Souma Tendou, and interrupted it by yelling something like "Hey, that's me!!" Then she's like, "I've never forgotten about you, if you don't have a girlfriend right now, then I hope we can get along and get closer." And we're to believe that he's so neurotic and so stupid that he misleads her by saying "OK" without realizing what she meant. So she confessed to him and asked him out and he certainly didn't say "no."
Mafuyu would be such a dealbreaker here for me, too, except she's the closest thing we have to chemistry or normal (pre-crazy) attempts to make progress with the idiot protagonist. She's probably better than he deserves, honestly.
Oof, I know that he gave them permission to just stop by, but you'd think knocking would be a given. I guess the precedent was set the moment Mafuyu snuck into his room/bed.
Or even a text, c'mon. And you'd think a piece of printer paper taped to the front door with "-ON AIR-" sharpied on it would solve a lot of problems, too.
I think I'm actually a little disappointed in the streaming setup. I know it's completely irrelevant for the story and basic avatars don't need much stuff apart from the webcam. But these two are professional vtubers with more than 30.000 viewers. So I would expect way more than just a green screen and a laptop webcam.
Still a very fun chapter though.
Zeria totally seems like the type who'd take her gear seriously, but a surprising number of artists in any field dgaf and use downright baffling garbage if nobody's forcing them to care, so this actually checks out for me, even unintentionally, lol. But at least show us the laptop precariously balanced on a bunch of shoeboxes rather than shooting up at them like they're rampaging through the city.
The use of the integrated mics and only ambient lighting for the cooking segment is absolutely unforgivable, though. Probably.