Anyone know what chapter is this in the novel, please?

Nevermind. I found it... AND ML WAS JUST BULLHEADED ughhhh

Okay, both of them dug their graves. But really, if only they can communicate PROPERLY

Does this have a novel?

Yes, you may read the complete chapters in this site:

https://novelib.com/story/sugar-trap/str-c1/

There's another link with better translation but I forgot to bookmark it. You can see it in other comments tho.