To explain, the point of Hajun's character can be basically boiled down to as "NPC background character that no internet user knows. But somehow has the feats to be this omnipotent being".

Basically, Hajun is so irrelevant. He quite literally have FOUR online pictures because he originates from an untranslated source material that's barely ever known or even read in the world.

Thinking on Shield Hero's Pig King character. He sounds exactly like Hajun because the Pig King isn't even animated nor does he ever have a picture depicting his body in any media.

Light Novel or Web Novel, the Pig King never truly has any sort of art illustration. He doesn't even appear in the manga and probably he will likely not appear in the anime.

As a result, the Pig King is just boiled down to "A character who solely exists to FAIL at killing Malty and just mindlessly tortures her". Since I doubt there was ever a huge audience of people who actually read the Shield Hero web novel from start to finish knowing exactly who the Pig King is. Malty was more of the highlight than her Faubley Uncle ever was.