Arma

"I can finally stretch my legs after so long. And stab someone. But first, to indulge myself in human food. Only good thing to come out of these...things."

- Arma after being freed from his seal Arma (アーマ, Āma) is one of the Thirteen Calamities, being the Demon sealed within Minstrel, the second largest country in Earth Land, making him the second strongest of the Thirteen Calamities, being only surpassed by the Demon of Pregrande, the Grand Demon, leading him to be addressed as the Second Hand of Darkness (二番手の闇, Nibante no Yami), solidifying his role as only the "second best" out of the Calamities. Regardless, Arma is still regarded as an extremely powerful Demon, so much so that even the likes of the Beasts of Gehenna consider themselves outclassed by him.

Trivia

 * Arma's appearance is based off of Galan from Nanatsu no Taizai.