As mentioned we've seen her in classroom group shots in the manga before, she's the only non-hair bleached gyaru there.
Also laughing gyaru is still best girl.
@obsidianpassion I imagine their moms are gals or sisters and some don't live with their parents if not most. At least you know your line will continue if your daughters a thot. It is just a problem if its a below average guy who knocks her up
Didn't the teacher who fucks one of the gals say at most 2 chapters ago the last home teacher fucked a different girl each day and that got him drained. Honestly I care to little about this manga to go back and check but I'm pretty sure that's what I read.
If this was 'Smash' brothers it would be like ... 'Another challenger SQUIRTS in...' ... LOL. I AM preparing for heavy disappointment with the home trip/visit because the MC is a BIG (in more ways than one) self-cuck., lel.