Cupper is a Noma who specializes in explosives. His left eye has exceptionally high vision, which can be inconvenient in daily life, so he usually wears an eye patch. However, when defusing bombs, he removes it!

カッパーは爆発物専門のノーマだよ　左眼は異常なほど視力が高く　生活上不便なので　普段は眼帯をしているんだ　しかし　爆弾を解除する際はその眼帯を取る！