This is literally Pet shop of Horror but instead of pets, it's electronics.

That manga is a lot different. Idk if you meant it negatively but you’re reaching. Just because this manhwa is about a shop and rules doesn’t mean they are the same. How disappointing, you actually got me excited

They got same vibes though. Shop owner both give away things (pet and electronics) and buyer needs to follow certain rules or else they suffer (very few got a good results). Count D is very funny though compared to Yak.