Recommendations

They were filmed 1 year apart, they both have Park Hae Jin and LOT's of family issues lol - idk, I just think they have a similar feel

Both has Wallace Huo, and Tiffany Tang as one of the lead couple. It's a funny rom-com, with a bit of action, and shows the couple in a less serious way.

In both series we ask ourselves if the main character is either good or bad. As the action advances we discover his reasons for being like that.

Elder woman x younger man.
Two people living together and getting to know each other.

similar plots of people pretending to be what theyre not. in cloud stairs the main guy pretends to be a doctor and in miss ripley the girl gets a job and visa because of a fake college degree.

The male lead has the same childish cuteness. So If you are looking for a drama with a similar male lead, this one is dev something for you!

Both movies is about the struggle between spy- and personal- life

both dramas deal with a supernatural being and finding love between a supernatural being and a human. Both dramas have the mains face obstacles that stand in their way and people who are determined to stop them from being together.

There are some pretty strong parallels between the two main leads in each series plot-wise and both titles involve the music industry as well.

both dramas are similar in the sense that both the mains are going to a music school and play some sort of instrument.

Both are about marriage and pleasant to watch.
In 'Marry him if you dare' exist an love triangle as in drama Marriage not Dating.

In both dramas the female lead is a celebrity who has her own career standing on the edge, while the male lead is an alien who has to live a limited time on the Earth and they both fall in love.

Two men, living their lives closely following the rules, and chaos they create.

Both really cute, rom/com dramas. The main actor is hot & both have great chemistry. Must watch, you'll love it!