Height: 158 cm

Campanella takes on the appearance of a young boy, but he hasn't aged in ten years. He is not a homunculus, nor an Immortal. His age and sex are not known, but he is referred to as male by the other characters.

Campanella has bright green hair with two strands sticking up like antennae . Although only one eye is visible under his hair, it is red and there is a red tribal tattoo like marking underneath. Campanella wears a pink suit over a lavender collar shirt, with a yellow ribbon tie and black shoes.

Campanella is a mysterious individual whose true self can't be seen. Due to the ambiguous nature of his gender, he is a hard individual to classify.

Although he appears to have an optimistic personality, Campanella is both cold and sadistic, taking enjoyment in taunting and threatening both enemies and allies alike - in particular, he enjoys messing with Gilbert Stein the most. He rarely gets upset.

Campanella is not completely irredeemable however, being able to garner genuine respect for his enemies and understanding their feelings.

Despite his powers as an Enforcer, Campanella is rather laid-back, letting others do the work for him in most cases, as he acts as an "observer" - simply seeing what will happen and letting his enemies escape upon being satisfied.

Serving as Enforcer No. 0 of Ouroboros, Campanella holds a special position among his fellow Enforcers - he reports directly to the Grandmaster about the progress of the plans enacted, and he doesn't appear to share the same freedoms as them.

(Source: Kiseki Wiki)