Shichirou Balam

Not much is currently known about his his past other then the fact that attended Babylus with Kalego. Both attending during the same year.

His mask hides a big scar on his jaw.

When he was a child, he used to be really close to animals and play with them even through his mom didn't allow it. One day he spent a night out, he was hungry and tried to eat some eggs that were there with him but the mother bird monster attacked him and left a scar on his face. Since then, Balam recognizes the beauty in living things.

(Source: Mairimashita! Iruma-kun Wikia, edited)