STOP COMPARING IT TO KILLING STALKING. iTS NOT. AT ALL. nOT ONLY IS IT UNTRUE, BUT IT'S ALSO DEGRADING TO THE AUTHOR WHO IS MAKING AND DRAWING THIS.
I haen't seen anyone saying they have the same personalities. At most I've seen people saying the uke is Bum with Sangwoo's personality or their child lol. But the character design, the vibes and the genre are the same, it's normal people compare it to the most famous webtoon of that kind of the same site.
Plus I want to add, what if those similarities are intentional by the author? It's possible they are riding the wave of KS success since it's very popular. That's why Lezhin is advertising Chess piece all along KS.
IMMA BOUTTA BEAT THIS BISH UP SHES LUCKY I CANT GRAB MY HANDS INTO THE STORY CUZ IF I COULD I'D BE SWINGING THIS BISH BACK AND FORTH SHAKING THE DUMB OUTTA HER AND THROWING HANDS I HATE THIS HOE