I don't know how to explain it right, but both of these fantasy dramas gave me a certain vibe that makes me believe that if you liked one of them, you would like the other as well.
Now, if you haven't seen any of these dramas and you don't know where to begin I could just simply say (without spoilers) that "the gu family book" has more "clear" romantic moments.

"True Beauty" gave me a similar vibe with "Alarm Love". Both of them have a high school romance. I recommend both of them 100% :DDDD !!!!

- ML is Spy/Agent
-FL is the "boss" (between the two leads)
- His family does not know his identity
- In general, they gave me the same vibe!

Similar points:
-ML from another planet
-FL actress
-Both of them (FM and ML) somehow have a past
-Both MLs have powers

There was nothing about fantasy in INR3 but those two, somehow, gave me the same feeling !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

They gave me a similar vibe about first love and youth. I recommend both of them but if you haven't seen any of these movies I suggest you start with "our times" and then watch "love the way you are". I think it would be better this way.
Enjoy :)))) !!!!!