Prologue

"Why do you have those bruises on your face, Baekhyun?"- I asked randomly and took a sip of the coffee from my favorite shop, not really waiting for an answer.
"I think I fought against the killer yesterday..." - He looked at me weirdly.
I choked on my drink: "You what?"
"Saerom, I think I fought against that-killer-we-were-searching-for yesterday when I got home."- Baekhyun said calmly while looking at me, waiting for another reaction.
"Gosh, are you okay? How does he look like?"- I asked worriedly and look at him from head to toe to make sure he was okay.
"Saerom, that's not a "he"... That's a "she"..."