*If you weren't reading the synopsis like I was when LHiMG started, you would need to use your brain to put together the context. The same goes for The Penthouse.
*Wealthy and poor main characters are included in both dramas.
*An unpleasant setting.

Ha Min and Yeo Joon both have painful and traumatic pasts, and they suffer from them.
Ha Min wanted to appease his mom by becoming a doctor, which seemed like he didn't want to.
Yeo Joon had to experience abuse from his parents.
Both are romance and youth genres and adapted from a webtoon.

Both get involved in a cult, and as they suffer they try to find out more about it and expose it.
Both are mystery and thriller.