I started playing this because I was horny and didn’t expect much, but holy shit, the writing is insane.
The girls have their own lives, goals, and inner conflicts—I actually found myself turning down sex scenes because I’d grown to respect the characters so much. The quiet detail of Hana not raising her hand for coffee (because of an offhand comment ages ago), or Rin not being a one-dimensional "tomboy" character by aspiring to be a nutritionist because of her friend that was implied to have... wow.
I expected the usual cliché where everyone’s existence revolves around the MC and they throw themselves at him, but the author wrote something far more sophisticated: it follows the lives of people who found themselves caught up in the supernatural, with everything they value at stake. They're forced to confront their flaws—Ai's kindness that saved the MC at the start later put everyone at risk by wanting to be "haunted" just so she could help out.
I cannot emphasize how beautiful the writing is. There's no affection meter or “do her quests to unlock sex” structure—doing them feels natural because they're required to progress the story. For example, the world is colored by showing the nuance of what a "ghost" means, that it's not a simple good vs evil story, and that was just from some random quest about a pen from one of the girls. You turned what could have been mindless fanservice into something thoughtful and deeply human.
Thank you so much for this masterpiece.