WARNING: This review is full of spoilers so don't go past the Summary if you don't want to know what happens. My recommendation is to read the review and not the book.
Summary
Dianthe Rising by J.B Miller is a cross between "Bridget Jones" and "The Lightning Thief" with some menage sex thrown in for kicks. Alternatively it could be called Catholic Girl Gone Wild! The author throws everything and the kitchen sink at this storyline, but then doesn't do any of it justice. Shallow character development and an uneven plot make this a rocky read, as does the frequent point of view switching. The author should have either written 3 books with sufficient development to explain how the multiple partners ended up in a relationship, or chosen one of the men on which to focus. Don't waste your time reading this book even if you got it for free and definitely don't pay for it.
Fantasy World
The story is set mostly in London, but the dialog tends to pull the reader back to the United States. The phrasing is off enough to be noticeable. Dia also goes from virgin to menage in a heartbeat not batting an eye when a second man shows up for her deflowering. Then she moves on to a third man the next day. It's hard to believe in a fantasy world that doesn't even believe in itself.
Tingle Factor
Some of the character actions/interactions are too unbelievable for the sex scenes to be enjoyable. I kept getting so distracted and annoyed, I was unable to enjoy the main attraction.
Romance
Several characters declare feelings for each other, but no real rationale is given for such emotions. They come out of nowhere, and the reader's emotions aren't engaged.
Drama
The author tries for drama, but ends up with the disjointed story of a woman who wanders from escapade to sexcapade.
Heroine
Dia is a good girl who falls off the wagon the moment she moves to London despite her adoptive, puritanical family checking on her daily. She is so smart she tested out of school early, but otherwise makes very poor life decisions. Dia's actions/reactions don't make any sense and we're left with more of a caricature than a character.
Hero #1
Daniel is a bouncer at a bar with a secret purpose, which is revealed much later in the book to conveniently prop up the plot. He's a military veteran who doesn't seem to care when another man shows up to participate when he's having sex with his new girl. Not only does he not blink at another man joining in, he kisses the shit out of him. Poor Daniel seems to be the token human in this story
Hero #2
Kale is an alpha werewolf who knows Dia is his mate the moment he smells her, but then decides to take it slow pursuing her. As an alpha, it is a sacrilege to share his mate, but then he agrees to a polyamorous relationship with Dia and two other men. He has issues within his pack (Pups Gone Wild), which is only briefly touched upon, and Kale comes across more as a headmaster than a pack alpha. It's like every action he makes contradicts who he supposedly is.
Hero #3
Robin is the most fun of the men, which is only fair as he is actually Puck. He comes across a bit more opportunistic than mischievous, but has the most depth of all the characters. His magic use is once again too conveniently used to prop up the plot, but at least he's more enjoyable than annoying to read, which is more than can be said for the rest of the characters.