i need some pure comedy dramas, without romance. but its okay if its thiller, horror or any genres.                 

Kdrama-Jdrama-Cdrama welcome ;)

actualy i have my own list. that you can see too so that we can enjoy together :

comedy dramas that i ever watched

comedy movie that i ever watched

Zombie Detective - it is kinda similar to Eulachacha Waikiki's humor with a few references to other dramas, plus it stars Ahn Se Ha (Spring Turns to Spring) it has some mystery/thriller but mainly comedy, no romance. 

Legal High - eccentric ML, no romance either. You could try the original J-drama but I'm listing the k-drama because I only watched this version. 

The Boy Next Door Pure comedic between two male lead lol

Maybe:

Started watching Mystic Pop Up Bar it's a bit silly and unrealistic but I find it funny...

"i need some pure comedy dramas, without romance. but its okay if its thiller, horror or any genres.   "


By definition, if it includes other genres, it's not "PURE" comedy. Many of the  Dramas that you list are not even primarily comedy, like Psychopath Diary and Vincenzo.   Since both of them are built primarily around murder and crime, which aren't remotely comic  (I can't think of anything less comedic than a psychpoathic serial killer) , I'm going to encourage you to consider a couple of Dramas that are heavily comic, even though they feature romance.  

Humour is VERY personal, and what one person finds funny another hates - I'd rather pull out my own teeth than watch Eulalala Waikiki for example. That said, here are two Dramas in which I literally laughed out loud more often than in any other of the more than 400 Dramas I've finished

https://mydramalist.com/13383-the-lover

https://mydramalist.com/12468-date-koi-to-wa-donna-mono-kashira