The Son-In-Law Identity Swap

Two men born on the same day accidentally have their identities swapped. The man who was supposed to be born into wealth becomes a live-in son-in-law in an ordinary family, while the man from an ordinary background takes over his identity and lives a privileged life. Years later, the truth of the identity swap gradually comes to light, the misplaced relationships drag both families into turmoil, and everyone faces difficult choices between family affection and personal interests.