Both stories involved a young man and an old man. Both has their own issue and problem. They learned from each other, hearts soften out and relationship growed.

Both Korean movie/ drama shown the relationship between the young man and the old man. Both old man has Alzheimer at the end. Heart warming stories

In The Chinese movie the young man help the old man finished his unfinished business. The Korean one the young man help the old man revenge

Both movies are all about revenge. There are sister relationship. Also a detective on both movies fell for the female lead. The detective after know the truth become the female lead’s lover

Both movies the main female leads were victims of sexual assault. BothFL plot to revenge. The main male lead were the detective, tiresomely trying to catch the serial killer.

Both female leads are skill fighter. Both movie the couple plot and end together somewhere else remotely. The man suspected the female lead but sympathy and fell for her

Strong woman, skill female fighter, revenge. They were victim before. A man like her, help her, plot twist, slight romance

The main lead served prison time. After they released, they still have to face the villian. They have to finish the business

Both Korean movie and drama the main lead served prison time but they wasn’t the main killer. After released they hunt for the real killer and seek revenge

Both female lead went to jail. After they released, they decided to seek revenge. Punish the real killer.

Ji Sunb in both drama. He went to prison on this one, but in Secret the female lead went to prison. They were both innocent

Both main lead went to jail. They tried to do right but can’t. They have to finish the business. They have to fight for themselves, as the justice system can’t be trusted.