Both have a side plot involving unrequited love stories which are similar to each other.

Both have a psychological, mysterious, and thrilling plot that unfolds throughout the series.

-1920s China
- gang war
- beautiful singer who is admired
- affairs

Playboy male lead who can’t fall in love

first and second seasons of the same show

Those with disabilities are taken advantage of and abused

A care facility for those with disabilities is under fire for the abuse of its residents.

WW2, prisoners on a remote island, wrongfully imprisoned, abuse of power

Same franchise

A girl is kidnapped and held captive

Same stories

Both are short Korean series with violence and betrayed friendships.