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).