Hero Is Back

Similar vibes. Both feature a young man and woman who goes on quests and adventures, growing stronger and closer.
If you liked one of these shows, you might like the other. :D
Same female lead actress.

Both dramas are filled with adventure, friendship, and fantasy. The setting is mixed with modern with supernatural elements. Both also have hidden worlds/realms.

It's basically the prequel.
It helps you understand the characters better and the storyline.
I need to get 100 characters so ignore this sentence.