Recommendations

Both have cohabitation hijinks and both are love stories about a star and a regular girl.

Both movies focus on love and power struggle intrigues behind the closed doors of the Imperial Palace.

Both involve ghosts that inhabit another person's body to figure out the mystery of their deaths. In Who Are You?'s case it's a father that inhabits the body of a cold young man. The father attempts to make things right with his daughter as they had a falling out before he died. In the process the man who's body the father inhabits falls in love with the daughter. He and the father team up to protect the daughter from whoever killed her father while they solve the mystery.

It's really really funny and the romance is sweet as well. I think the whole possession concept is handled a little better in Who Are You than in Oh My Ghostess.

Both are complicated time travel dramas that involve the main character going back in time to better their future. But consequences of time travel are their biggest foes.

Written my the same writer.
Also the same type of theme with the main lead having her identity taken by someone close to her.

In both series the detective falls in love with the beautifull/handsome suspects.

Also modern day monarchy! The storyline was adorable. The cast was fun! The mother was so awesome! Song Seung-Heon and Kim Tae-Hee had great chemistry!

Modern day monarchy! Great chemistry between the cast members. The plot was so interesting and Lee Seung-Gi is in it!

Both the male leads in these dramas do a fantastic job with D.I.D. You have to see them to understand...

This is the original Taiwanese version. There's more back story and there's a second part!

both talk about two men fight for their life after losing every thing
both have really good actors , episodes are unexpected
and It is filled with Thrills

Both are melodramas about a woman who lies everyone and conceals her own identity for her own good. Both women have different reasons and situations but the overall feel is similar.

both directed by the same director...those shots, that cinematography and the background music will feel the same. Kanojo is more mainstream and taiyou no uta is more indie but nontheless both yui and sakurako are tremendous singers.

its virtually the same feeling to both family drama with more than one romance going on for those who have lots of time and patience to watch

Music forms an important part of both movies. They have the same laid-back feel, and both are directed by Yamashita Nobuhiro.