In Solo Leveling, Sung Jin-Woo's rise from the world's weakest hunter to one of the strongest in the series. As Jin-Woo levels up and becomes stronger, he begins to build an army that follows his wishes when summoned. The Shadow Army is one of the pinnacles of Jin-Woo's power in the series because they grow with every battle and evolve alongside their master. Jin-Woo's army is a collection of creatures and warriors resulting from his victory in the gates or the System's dungeons. Some were once noble knights, others were terrifying beasts, and a few were even former enemies who had fought against him before becoming a part of his army in the Solo Leveling series.