I don’t know why but the manga is trying so hard to make Rin some loveable dork, but she just comes across as annoying and kinda childish. The 4 yr old that’s sucked and constantly grabs at Mayumi’s boobs is also really weird to add as some sort of cute comedic skit. Obv the story takes place so that the MC will fall for Rin, but if she wasn’t narratively going to be shipped with her, I feel like this situation would be so awful for the MC. Rin’s behaviour is totally out of line but we’re forced to just put it down to just “country bumpkin” behaviour. I’ve read the authors other works, and actually didn’t mind them, this one tho is really hard to digest.