Who knew there was such a thing as a demisexual incubus?
I was a little nervous going into this, because I wasn't sure it would be my genre: you've got an incubus, which by its nature isn't particularly monogamous, and a human who explicitly states he's not interested in relationships because it never worked out when his ex-girlfriends wanted to him to be exclusive with them. (He wasn't cheating; he was upfront about it, but one girlfriend even broke down and stabbed him after initially saying she was fine with that type of relationship.)
Open relationships are a thing, and polyamorous people are definitely a thing, but this is a very sweet, entirely monogamous love story. Might be disappointing for some audiences, but I was really happy once I could tell where it was going. It's wildly cute for the subject matter.
There's honestly not much in the way of real relationship development or character depth, so it can't be a 5 star story. But they're so sweet together, and I liked seeing Harumi's gentle, caring side, and Forni gradually becoming more self-confident.
They could choose to find other people, and both of them give each other that option at different points. But they like each other and want to stay together. Forever, even: the mangaka's end note deals with the human/supernatural aspect by saying that Forni will choose to go into the afterlife with Harumi, once that time comes.
Forni doing housework was also super adorable. What an oddly sweet, heartwarming little story.