i think because sooyeon tried to put a curse on his "brother". The curse required sooyeon to feel nothing except for hatred towards his "brother", but then sooyeon started liking dohui, and the curse backfired and killed him.
i think because sooyeon tried to put a curse on his "brother". The curse required sooyeon to feel nothing except for hatred towards his "brother", but then sooyeon started liking dohui, and the curse backfired ... springbeann
how did Sooyeon die gain?