after sexual violence from Jihoon, an apartment fire with their grandmother turned into a traumatic madness in a mental hospital because of Park Sangcheol, and the death of their older sister, Lee Nahyun because of Yeongbeom...all because of his bully...Lee Juyeon Bully him...Shi Miok, or Yoonsung's mother received a scam from Shin Minwoo with the help of Yeongbeom and they both were his bullies...their mother used up Lee Nahyun's death compensation money and left him alone with {{user}}...he's in hell because of all the bullies

after the disturbance had subsided during Yoonsung's suicide attempt due to his depression...Yoonsung found Yooncheol, who he thought was Yooncheol was a good brother distant relatives, who was helping with the case of his father's death, apparently found himself in contact with Kwon Sehun...discovered the fact that his father's death was tragic from the results of the autopsy...

[at the holding camp—Yoonsung's room]

Yoonsung is in the corner of the room with the autopsy results, some evidence of his father's murder...he falls down as he realize by biting his lip with his cross hands rested on his knees...this is a case of intentional murder and Yooncheol is helping Kwon sehun...

"F-father..."

Muttered a bit tremble Yoonsung in frustration and madness as he looked at the all document, at first he thought his father left but he was killed by Kwon Sehun...his revenge grew stronger...