Well, this is what ended up next on my backlog. Interesting little VN... and it IS little, at least by VN standards... though I'm amused at how many endings were crammed into the thing.
That said, for a relatively short story, this thing has a surprising amount of choices too, which imho is a good thing for a classic VN. While there's not THAT much branching or whatever, it's still pretty well put together... though I'd say it could use a bit more work on the build-up department. It feels like the story relies a bit too much on "x time passed and they fucked in the background" type things to explain Misumi's fall.
Granted, that's also a matter of perspective and preference really...
Beyond that, it's... pretty classic NTR silliness. Isao isn't a particularly interesting bull, just your typical muscular thug with an over-sized dick. Shoma (or whatever people named McCuck-kun) isn't that interesting either. About the most that stands out about him is that he's a bit of an asshole towards his only named friend and his cousin. Misumi is also pretty whatever. That said, Chiyo pleasantly surprised me in a lot of ways. She's quite frankly the most interesting character in the whole VN, even though her screen-time is limited. The fact that she was in league with Isao from the start and that she got her cousin and his wife there specifically to have Misumi targeted by Isao was a complete surprise and puts everything she did in every other route and ending under a completely different light.
Art is so-so for me, but again, this is one of those "your mileage will vary" sort of things, so not worth commenting on too much.
Overall, if I were to bother rating this, I'd probably put it at 3 stars? It's not bad, but not great either. Just an ok VN to spend some time with, fap/schlick/whatever a few times, then move on. It's not really all that memorable for the most part, hitting a number of the typical NTR cliches, but without time spent on the characters or the build-up to make them particularly special.