If you like wonderful mystery dramas, you will like it.

Both are surprising japanese TV dramas with great plot twist in the end.

Japanese Cain and Abel is an adaptation. I've started to watch the korean one and just cannot stop. The stories are different, but the essence is the same.
Two brothers who love each other started to hate because of envy and jealousy.

Both japanese dramas are really complex and have a great plot about suspense.