Countess Diana was born into a family of summoners, but she despised the fact that her powers never appeared. She marries the son of a duke, who says he loves her, but he only wants her fortune. Her husband has an affair with her only best friend, and Diana, who is no longer of any use to her, is killed along with her beloved family.... However, she finds herself back in time to before her husband's marriage, and she even has the rare power of "divine summoning"...? In order to avoid a bad ending, she summons the most powerful gods to her side and gives her scum husband the best of a bad situation! And then the cold-hearted prince, whom she unexpectedly summoned, starts doting on her...?