Just gonna leave some backstory and additional information for this guy. Here we go.

His last name, “Celeste”, is actually short for the Italian term, “Corpo Celeste” which means “celestial body”. This is because of his magic, Constellation magic. As the name suggests, he uses the power of stars to fight. It’s similar to light magic because of its speed and its tangibility, but it is also similar to flame magic because it can burn people. He has the highest combat speed out of the black bulls. Additionally, Akio is the son of a noble and is also naturally gifted with huge mana reserves, with his reserves scaling above Nozel’s.

Backstory: Akio came from a very old fashioned village, who believed that any magics outside of the basic types (Wind, Flame, Water, and Earth) were cursed and the wielder of said magic was devil spawn and would bring calamity to the village. As a newborn, Akio was abandoned in this village and was beat countless times growing up because of his unique magic. At the age of 7, Akio destroyed the village, killing everyone in it, and was found by Yami. He then joined the Black Bulls at the age of 15, when he got his grimoire. This takes place three years later.