Kuro Heartfield who governs the frontier land. His true identity is a normal 25-year-old man who has been reincarnated from another world. He bought the resentment of a noble person and came to this frontier as a feudal lord like a relegation, but he likes the life here and has no complaints. One day, a marriage proposal is forcibly brought to him. His partner is Miss Violet Valentine. She is a noble daughter of a duke, but her true identity is a so-called villainous daughter who is in conflict with the heroine in a certain love game. In order to make a place in this world, a strange married life between misfits starts now!