He is 39 year old who reborn to ancient era as 16 years old and partnering with the same age as him at present. Its like lowkey pedo. He have a soul and mind of 39 and partner with the crown prince whose looks like barely adult. What a huge gap in terms of soul.

this story about a reborn doctor who doesn't struggle much in his life coz after he was reborn he was liked by his current family. His grandma, his father, his seven sister even the butler, maid and guards like him except his stepmother. The guy he save which is the prince got interest on him. There's no really love involve before they got married just crown prince want him to own and possess him due to talents and skills which can help his country. Which turn me off and drop it at 101.

the MC also bring the modern world ideas to the ancient era alone like an OP character. I was hoping that his boyfriend is reborn too, I was having a high expectations that he's a high standard as a prince but nah. He's like a child. I don't see much of his intelligence but its the help of MC that makes him more look intelligent even the strong aura which the story describe can't even feel or see it.