i think it’s yamato’s friend/crush from middle school, the one who helped “rescue” nacchan. since he said the “i hate bitchy girls” line once again (▰˘◡˘▰)
It’s implied that he’s Yoshinaga’s best friend during middle school and the guy him and his female friend (Shibata/Nacchan) used to both like.
Implied because this Mikeda says “he doesn’t like the nasty type” which is what he said when people were bullying Shibata for liking him. after that incident Yoshinaga confesses to her that they like the same guy, and that’s how him and Shibata end up being friends...
Seems like things didn’t end well between them...
anyone spoil me who that mikeda is