Cornea Sebuld is a character from the anime series Demon Lord 2099, serving as a significant figure in the Akihabara Arc. He is the head of the Seburd Family, which is recognized as one of the three major families that hold power in Akihabara. Cornea is a goblin, and his physical appearance matches this heritage, looking fierce and imposing. He is also the owner of a significant item known as the King's Seal.

In terms of personality, Cornea is portrayed as a strong leader who genuinely cares about the well-being of the people living in his city. Despite his fearsome appearance, he is described as an incredibly kind character overflowing with love for his community. His primary motivation is to make Akihabara a better place for everyone to live, demonstrating a sense of responsibility and protectiveness over his domain.

Within the story's structure, Cornea Sebuld acts as a key local authority figure. He has a notably strong and positive connection with Hizuki Reynard-Yamada, who relies on him and whom he supports in return. He is also connected to the city's power dynamics, ruling over the Electric District. His role in the narrative, however, concludes tragically. He is betrayed and killed by the character Mag Rosanta, who had secretly taken over the body of another individual, Tratte Götel, to launch this treacherous attack.

Regarding his development, the character does not have a lengthy arc, as his story ends with his assassination. His primary narrative purpose is to serve as a respected leader whose death raises the stakes in Akihabara and demonstrates the threat posed by Mag Rosanta. No specific or notable combat abilities for Cornea Sebuld are documented in the available information.