No shut the fuck up, stop trying to do shitty mashups. :U
Sjksksjsk
Okay. I love Undertale, but PLEASE. NOT with Killing Stalking. No no no.
Okay--but mainly because it would be too much work. （￣へ￣）
Then how about a game where the player is Sangwoo and can do different things to Bum after he is captured? No mashup there.
Wouldn't it be cool if there were an Undertale Killing Stalking mashup AU game where you could be Bum and play the whole game as either a victim trying to avoid times when Sangwoo will lash out next and survive (and maybe find a way to escape--not) or as a killer, who joins Sangwoo in killing people. The later would be like genocide route and playing it would be the only way to unlock Sangwoo's full backstory. I think in victim mode you can save the cop, but in killer mode, you have to off him.
It's too much work to make, but it would be fun.