Seung Heon: Shi Ha (severus snape and Harry Potter) (Shi is SHr)
Rojas (Ron Weasley and Harry Potter) (Rojas is RHr)
VH: Vouchers (that is, Voldemort (tom riddle) and Harry Potter) (Vouchers are VHr).
SS: Sirius Black and severus snape.
TR: Voha (that is, tom riddle and Harry Potter).