Tensei Mae wa Otoko Datta no de Gyaku Harem wa Okotowari Shite Orimasu

Mireille, the princess of the small and struggling nation of Grilles, suddenly finds herself the subject of a marriage proposal from Cain, the king of the great nation of Drake. However, it quickly becomes clear that Cain’s true object of affection is her younger sister, and the proposal was made to the wrong person. Despite this revelation, Mireille is forced by her father to take her sister’s place and marry Cain as a stand-in bride. Prepared to bear the guilt of this deception, Mireille braces herself for a cold and loveless life. Yet, to her surprise, Cain cherishes her deeply as his bride. Why does he continue to treasure her so sincerely despite the truth?

Tasuku Nakamura, who was thrown into the sea in a marine accident and tried to help his best friend, ended his short life of 25 years. Formerly a mediocre office worker, when he opened his eyes, he was in the form of a six-year-old baron's daughter, Sophie Linier. At first she was confused by the changes, but she was reincarnated as a beautiful girl and decided to live as a lady in a different world.