emeraldarrows

Both are mini dramas in which the ML has a dark personality/on a dark path and the FL enters his life under a false identity/pretenses.

Both are about a poor FL entering the house of a rich grandfather and his grandson(s) and becoming involved with one of the grandsons.

Both are mini dramas in which the rich ML is in a contract relationship with the FL to pretend to be someone else (his long lost sister vs. lost fiancée) in order to make his sick grandfather happy.

Both dramas have a contract relationship (siblings vs. marriage) between the main couple in order to please the ML's sick grandparent.

Both dramas have the odd concept of the main couple pretending to be brother and sister and living together.

Both are mini dramas in which the ML and FL agree to a contract relationship as relatives (brother and sister vs. father and daughter) for the ML's need to please a relative, and while living together they fall in love.

Both dramas are fake brother-sister relationships between the main couple. And both MLs fall first.
................................................

FL has a contract relationship with the ML (pretending to be his sister vs. being his wife for a short while) which is to benefit the ML's father in some way. Both are mini dramas.

In both dramas the main couple have a fake brother-sister contract relationship that turns to romance.

Both are mini dramas in which the ML enters into a contract relationship with the FL with her pretending to be his long lost sister in order to comfort a sick relative (father vs. grandfather). The two then fall in love.

Both dramas are about an actress who magically enters historical times and ends up messing with the plot or history, changing fate as well as falling in love.

Both are dramas with a modern day FL who time travels to the past and falls in love.
.....................................................