▁hang ▁My ong - he o ) ▁decided ▁to ▁kill ▁Ch ang - wo ok ▁and ▁all ▁the ▁students ▁whose ▁parents ▁they ▁de em ▁responsible ▁for ▁their ▁daughter ' s ▁death . ▁ ▁The ▁film ▁clos es ▁with ▁I - na ▁seeing ▁that ▁she ▁to ps ▁the ▁class ▁ranking , ▁and ▁it ▁is ▁imp lied ▁that ▁Be om ' s ▁attacks ▁was ▁due ▁to ▁her ▁being ▁possessed ▁by ▁Ji - won ▁since ▁the ▁beginning . ▁ ▁Cast ▁▁▁ ▁Lee ▁Be om - so o ▁as ▁H w ang ▁Ch ang - W ook ▁ ▁Y oon ▁Jung - he e ▁as ▁Ch oi ▁So - You ng ▁ ▁Nam ▁Gy u - R i ▁as ▁Y i - Na ▁ ▁Kim ▁B um ▁as ▁K ang ▁Hy un ▁ ▁Son ▁Ye o - e un ▁as ▁Y oon ▁My ung - H yo ▁▁ ▁Lee ▁El ▁as ▁Guard ▁▁ ▁Da ▁Ge on ▁as ▁Y oon ▁So o - J in ▁ ▁Kong ▁Jung - H wan ▁as ▁Lee ▁Chi - You ng ▁ ▁Ham ▁E un - j ung ▁as ▁Kim ▁Ji - W on ▁ ▁Yang ▁Ji - W on ▁as ▁Min ▁H ye - You ng ▁ ▁K ang ▁W on ▁as ▁Song ▁D ong - Hy uk ▁ ▁K won ▁Hy un - s ang ▁as ▁Cha ▁J ae - W ook ▁ ▁Son ▁Ho - j un ▁as ▁Jo - B um ▁ ▁Moon ▁Wo ong - K i ▁as ▁Kim ▁Hy ung - J in ▁ ▁Jung ▁Ch