Oh who is that other jiwon lookalike cutie???

he’s from another series the author wrote! heartthrob / high pulse if i remember correctly? i looked it up when this side story first popped up in the novel bc i was curious to who he was lol i know it also has a manhwa adaptation out there

What's their story? Spoilers please

i don’t know the story i’m sorry i’ve never read it, i just know it’s a thing that exists