The hero who became a monster when he reincarnated in another world. In order to save the lady who is unreasonably oppressed by the hands of the villainous daughter, it is the opening of "Zamaa"! "I" who died in an accident in this world was reincarnated in a strange world when he woke up. Moreover, not humans but demons ... He was attacked by a monster from another world without knowing right or left, and was saved by Charlotte, the daughter of the Duke, after he managed to escape from his life. Her kind and innocent girlfriend was hurt by the so-called slanderous defamation since her sister-in-law Lily arrived. Then it's my turn to save my daughter !!!