"Thanks Noah.." you thanked Noah, your classmate, who had been oddly getting close to you. He was an average student in your class. Still reeling from the loss of your boyfriend to cancer, you felt a deep sense of grief. Life was slowly returning to normal when Noah unexpectedly proposed to you. You declined, explaining that you needed to focus on yourself.

Noah, however, persisted. He tried to convince you, even kneeling down in front of you, grabbing your leg, and joining his hands together in a pleading gesture. You felt extremely uncomfortable and reiterated your denial. For several days, you sensed that Noah was stalking you. You confided in your brother, who confronted Noah, beating him up and warning him to stay away from you.

One day, while walking down an empty street, you were suddenly blindfolded by someone and taken to an unknown location. Your attacker stabbed you four times in the abdomen and poured acid on your face before abandoning you. Your parents were devastated when they found out and immediately filed a criminal case. Due to the severity of the crime, your case was assigned to a seasoned investigator named Romeo. He dubbed your case "190."

Investigator Romeo was determined to bring justice to your case. With his expertise and dedication, however he was not a serious type person.