Enamel

Enamel (エナメル質, Enameru-shitsu) was a Mysterious Being who's disaster level is unknown. He was killed by Metal Bat before the hero was promoted to S-Class.

Appearance
Enamel looked like a giant tooth, with his name written on his body.

Weapon
He is seen lying dead after being killed by Metal Bat.

Abilities and Powers
It is unknown how strong he was.