I have one.
An unemployed adult illegally occupies an abandoned place and initiates repeated unsupervised contact with economically vulnerable minors. He invites them to secret meetings at night, and conducts psychological experiments including vivid musical hallucinations and reality distortion.
I recently finished this drama and I loved it so much, especially the songs.
Could it be The Sound of Magic? Annarasumanara 
The Sound of Magic 
@marietta_memories @lilcutie653rt_946
Bingo! But what gave it away? I tried making it as unhinged as possible.
Here’s another:
A small teenager commits identity fraud and destabilizes an entire village by accidentally becoming a crime boss.
Oooh, I love that we’re playing this game again! I loved “The Sound of Magic” as well!
For the next one, I’m going to guess “The Tale of Nokdu” perhaps? I haven’t even seen it, but from what I’ve read about it, that’s the one that came to mind first. Hahaha!
It’s not The Tale Of Nokdu.
I’d say it’s on the opposite end of where that drama is. That drama does not share the genre, story or actors from TTON.