Hayeon lost her only younger sibling to an unidentified man. With no real leads and no help from the police, she’s left stranded at a dead end. Then, when Hayeon herself ends up in danger, she’s saved by a mysterious man named Yuseong, a man with strikingly blue, mismatched eyes. Yuseong tells her to stop chasing revenge, speaking as if he already knows who the killer is. In his cold, detached words, Hayeon senses the first real hint that the culprit might actually be found. At the same time, she burns with anger at the way he keeps inserting himself into her life. In the end, she follows Yuseong all the way to his room. And there, she comes face-to-face with the countless scars covering his body. What truth is Yuseong hiding, when he may be her only hope of finding the killer and getting her revenge? “Does it hurt when someone dies because of you? If you won’t help me, then I’ll die right in front of you.”