As abrupt and late in the game as her arrival is, I can't help but hope the cousin's influence results in Minoru becoming more self-sufficient at least. He does, after all, want to pull his weight as house husband and live-in source of dick roommate to Onee-san. Obviously not gonna happen, but...
I'd much rather get choked out every lunch period than spend time with any of the rest of the student body, given they're apparently all fucking sociopaths
@Shin_968 Thank you for taking the trouble to explain the Japanese language puns instead of trying to awkwardly crowbar in an English equivalent like other translators tend to
@BuffSoul the hypothetical Westermarck Effect is pretty much what you're looking for here, it's basically that living in close domestic proximity with people during the first few years of your life preps your brain to be desensitized to any sexual attraction towards them