Like the Japanese Ballad of Narayama, Kim Ki-young’s Goryeojang (???) envisages a world in which the old are expected to sacrifice themselves for the young, but unlike either Keisuke Kinoshita or the later Shohei Imamura, Kim struggles to find nobility in adherence to such a cruel and inhuman tradition.

in both dramas the main leads are in different time lines and connect through a cell phone to try to change the past and the future. In this drama they are teenagers in the past and young adults in the present/future.

Dystopian thriller about fallen people, marginals and debtors who can't live anymore in the mainstream society.

The ML is drown in debts and can't pay the loansharks. He's rescued by a man who offers him to live in in a mysterious town where they can live without worries. He discovers he can't return to his previous life and that he's trapped in the city.

Lot's of similarities in the way they arrive to the city/ island, the way they are controlled by microchips in their heads, the tasks they have to perform in the island/ city that undermines or destroy their own sense of morality, ethics and self-esteem.

Both show how certain organisations takes advantage of getting rid of all the people that have no productive value in mainstream society.

Both films are about Japanese going to remote villages in China. In Birds People in China, the ML, a young Japanese salary man goes to evaluate precious Jade mines.

in this drama the Male Lead is also in love with the female lead since they were children. The difference is that the FL also was in love with him.
In both dramas the adult FL are hard working and independent, as children they were leading the relationship with ML.

topic: babies raised by others. In this drama the ML receives her 5 years old daughter. He didn't know about her existence. The mother left her to be raised by him. He's a famous actor and he doesn't care about his daughter. He pays a caretaker to raise her and they fall in love.

I add this drama because of the topic of babies raised by others that maybe family or not. In My Lucky Star, the FL was raised by his uncle because her parents died.
His ex-boyfriend betrayed her: he got married and his wife gave birth to a baby girl. The wife died and the ex-boyfriend became a widower. The baby needed a heart transplant and he committed a crime to get money. He went to jail and the FL decides to raises her as her daughter.

Lovers who decided to break up their relationship due to a conflict of interest get reunited after 10 years of being apart. They both love each other and were each first love but the wounds of the past were too painful: he felt guilty because of what he did in the past to the female lead and she was angry at him.

Another biographical film about the writer Xiao Hong, one of China's most famous essayists and novelists,

A drama about revenge service done by specialists: they help victims to seek revenge on their offenders.

Women who take the blame for their boyfriends, end up in prison being falsely accused and also pregnant. They give birth and bring up their sons in prison.

Based on a highly popular webtoon, “Strangers from Hell” tells the story of Yoon Jong Woo, an aspiring novelist who moves to Seoul and unexpectedly finds himself caught in a hell created by other people.