Ohoho, they're actually leaning into the main tension of the story already--
not whether or not these two are gay for each other, they absolutely already are
nor whether that's okay, it absolutely is (in fiction, at least)
but whether Kei's tan shota w/ long hair househusband appeal can entrap Kouhei from going back to Tokyo
which it absolutely can and will
Tbh, don't think I've ever read and enjoyed something like this before, but this is pretty cute and wholesome despite the lewd undertones. And there's definitely a lazy summer vacation vibe to the whole story too, that is really enjoyable and works well with the characters and setting. I'm not a summer person at all, but I'm still enjoying that aspect of it.