Leva serves as a deputy among the antagonistic Selfish generals, emerging alongside partner Gula in the series’ later arcs. His imposing height, slate-gray hair, and faint stubble contrast with garish clown makeup, while his attire—a vivid green jacket, crimson shirt, and signature top hat—hides a lethal edge: the hat transforms into a razor-sharp disc capable of slicing through solid material.

Marrying mischief with calculated professionalism, Leva delights in tormenting the original Selfish trio through deceptive tasks, such as dispatching them on futile quests to locate Princess Marie Ange. Yet alongside Gula, he adopts a disciplined partnership during missions, harmonizing prankster antics with ruthless efficiency. This duality falters only in his volatile dynamic with fellow general Bel; their mutual hostility culminates in Bel siphoning Leva’s energy during a betrayal, fatally draining his life force.

Leva’s power centers on manipulating human selfishness to summon Jikochuu monsters, amplifying their threat through collaborations with Gula. Promoted by the Selfish King to replace the trio’s faltering efforts against the Cures, he devises a pivotal assault using a corrupted tree that spawns black energy spheres to transform humans into Jikochuus. Though the scheme initially overwhelms the Cures, their resurgence of hope dismantles the tree, thwarting his plans.

In his final hours, repeated defeats drive Leva and Gula to confront Bel, who seizes their weakened state to absorb their remaining energy. The theft triggers their swift demise, severing Leva’s role in the conflict. His name, rooted in the envious Leviathan of demonic lore, cements his thematic tie to the seven deadly sins.