Beru

Beru in the Solo Leveling anime is the shadow soldier extracted from the Ant King (the powerful boss of the Jeju Island arc).

He appears as a massive, towering humanoid ant-like figure with a shadowy form, featuring sharp claws, smoky/translucent wings, a light purple glow/aura, and striking neon/glowing eyes (often depicted with a fearsome blue or purple hue in his shadow state). His design emphasizes intimidation and power, making him look like a monstrous yet regal insect warrior.

Personality-wise, Beru stands out among Jinwoo's shadows for his high intelligence, ability to speak fluently, and deep loyalty to Sung Jinwoo (whom he views as his king). He retains a warrior's pride and bloodlust for battle from his original Ant King days, but as a shadow, he shows formal speech, eagerness to please his master, and occasional emotional depth—like pride, rivalry with other shadows, or even protective instincts.

He's one of Jinwoo's strongest and most distinctive shadow soldiers, often acting as a key combatant with superhuman strength, speed, agility, and durability. In the anime (particularly around his debut in Season 2 during the Jeju Island events), he's portrayed as both terrifying and charismatic in his devotion.