Hwarang and Check-in Hanyang share themes of hidden identities, friendship-building, and historical settings. While Hwarang focuses on an elite group of warriors in Silla, Check-in Hanyang is set in a guesthouse during the Joseon dynasty. Check-in Hanyang includes a gender bender element, whereas Hwarang does not.

- hidden identity
- revenge
- angst
- struggle for power

The interaction between the two leads is similar. It has the same vibe. Two people who randomly meet and become friends (and more)...

Male lead approaches female on purpose. Then they became romantically involved.
Prosecutor Princess revolves around the theme of revenge. I Wanna Hear Your Song is about uncovering the truth behind a mysterious murder.

They both involve crime, action and hidden identity and both dramas are pretty intense.

Story about modern girl travelling back in time. She falls in love with the male lead.

One of the main characters in both dramas is King Yeon San Gun. He is considered the worst tyrant in Joseon Dynasty.

Both of these dramas have similar main characters, fake relationship and contain funny scenes.

They are both historical romance about hidden identity and forbidden love.

Both series show the story about man who wants to take revenge on father of the female lead. Prosecutor Princess is more romantic comedy with a twist of revenge. Beyond the Clouds is a crime melodrama.

In both stories, an innnocent man spent years in jail and later wants to get revenge with using the female lead, but he ends up falling in love with her.

Both series show the relationship between neighbors and female lead doesn't trust people easily. Let's eat has bonus food eating scenes.