In the webtoon "Solo Leveling," the Black Market serves as a crucial hub where hunters can trade various items, weapons, and services that are not readily available through official channels. It provides a platform for hunters to acquire rare and powerful equipment, strengthening themselves for dangerous missions and battles. The Black Market also serves as a plot device to introduce new characters, showcase unique abilities, and drive the storyline forward through the interactions and transactions that take place within its shady confines.