Calzzo

is a Blue Demon that served Gloxinia and participated in the Great Fight Festival.

Appearance
Calzzo is a Blue Demon, a giant, bird-like creature with muscular physique. Blue Demon's arms resemble wings and they have coxcomb-like features on their heads. Compared to some other Blue Demons, Calzzo has a small body and build.

Personality
Calzzo's personality is largely unknown.

Great Fight Festival arc
Along with the other Blue Demons summoned by Melascula, Calzzo was ordered by Gloxinia to distribute flyers advertizing the Great Fight Festival.

Calzzo is teamed up with Dolzzo to fight against Meliodas and Ban.

After trying in vain to defeat the duo, Calzzo is inadvertedly killed by Ban with a single punch.

Abilities and Equipment
Calzzo possesses the standard demonic power of darkness, being able to use it to form wings to fly.