It's NTR bait. There's nothing deep or complex about being into that vs. people being grossed out over a fluff series rugpull turning into Boy's Abyss.https://mangadex.org/title/cf1c93cc...ga-osananajimi-wo-suki-ni-natte-shimaimashita
Now like one reader says there is a big twist halfway through the story. Some readers hate it while others love it.
I'm in the love the story twist category.
So before you read it, you need to answer a question: "Are you a reader who gets emotionally attached to fictional people/settings and acts emotional to the point of being irrational at 180 degree plot twists?"