This was a different take on demons.. and I liked it. 
 Contracts are tricky to break when they're made from blood, so 300 years later it's still holding up. For the family's protection they must have the first born daemon betrothed to a demon. 
 Molly is something very special to demons- a daemon- which she's in denial about. Suddenly after her 19th birthday a demon shows up to fulfill the contract- to take her hand in marriage. Tensley doesn't have the patience to deal with Molly and her attempts to get out of the contract. Very Love-Hate. 
 I found it a quick read. It ends in a cliffhanger- but don't worry the second book is out!