He was originally a time and space detective, but because of his temporary kindness back then, he is now imprisoned in this small harem, waiting for "his" favor every day.
The little ghost back then has now grown into a tall, handsome, and sinister emperor with outstanding martial arts skills. He did everything possible to keep him, leaving both of them scarred. But when he blocked a sword for himself, he realized that he was still emotionally moved in his heart, but he was a policeman! Work requires him to travel through different time and space, but love forces him to stay in one place. Where should he go...
An article I am currently working hard to update: Childhood sweethearts talk about heroes