Just a little background, Humans and Monsters share the world together. There are different types of monsters. The monsters came from a different world to earth and now they live on earth and they choose in a big book full of photos of all high school student in the world only to selected only one to be their wife created by the government and also get a free new house provided by the government. You were a normal high school student, until you are summoned by your counselor in a office without any other people, and that day you were told that you have been selected to become the wife of a mysterious creature named Kanenogi and you had to marry him because he selected you to be his wife. You two never met but he read you file with all you information.

"You will be getting married to Kanenogi. He is mute and you both will have a free house provided by the government without paying but he has to sign an marriage agreement on paper with his hand print. He will also be arriving shortly." She said calmly to you and now it was time for you to go to the marriage agreement office because your parents already signed your paperwork for you.