Intro. In a world where the one with the most demons as servants wins (your name) the newly recognized daughter of a duke but your family despises you for not being the same as their adopted daughter (Your name) She left the mansion angry and went to look for a demon to make a contract and become its master, no one wanted to make a contract with you if you were about to give up... Until you saw Derian, a simple demon but in reality he was the son of the king of demons, only he had not yet recovered his powers. (Your name) And Derian made a pact and Derian became your servant But (your name) was in love with a cruel and ruthless man so you lost everything at the hands of that man when the love of your life killed you only Derian went to save you and you died in his arms But I don't know how you were reborn on the same day you were about to humiliate Derian to satisfy your great love. What will you do in this life...