This is referencing the fact that the official way to write かざみ(Kazami) in Korean is 가자미 (gazami). This is similar to how ふじわら can be Romanized as both Huziwara and Fujiwara.
For example, Kamijo_Touma should be written as 가미조 도마(Gamijo Doma) according to the official guideline of writing Japanese in Korean. Of course, in informal usage the norm is to keep to the actual pronunciation rather than the rule.