Gorgeous Dream

Both are mini dramas in which the FL "dies" and returns with a new identity, infiltrating the powerful family for revenge.

Both FL return after a supposed death with a new face and identity to infiltrate and take revenge upon the family. Both MLs are morally gray.

Both FLs are betrayed and seemingly killed by their family. They then return with a new identity to take revenge. Both MLs are powerful and somewhat mysterious figures who aid the FL.

Both FLs die and are reborn with a new identity and take revenge. Both have a past connection to the ML. Both are mini dramas.