Gangnam
The dark mortal, who goes by the name of Kuro, is a transfer student at Gangnam High School. He is a teenager with black hair and a mysterious aura about him. He is not very social and keeps to himself, but he is known to be very intelligent and skilled in martial arts.
One day, Kuro is walking home from school when he is attacked by a group of thugs. He easily defeats them, but he is left with a feeling of unease. He knows that the thugs were not acting alone and that someone is out to get him.
Kuro decides to investigate the matter and soon discovers that he is the target of a secret organization that is trying to eliminate him. He also learns that he is not just a normal teenager, but that he is actually a descendant of a powerful demon.
Kuro is forced to use his powers to protect himself and his friends from the organization. He also learns more about his heritage and his destiny. He must decide whether to embrace his dark side or to fight for the light.
Kuro's story is a tale of action, adventure, and self-discovery. It is a story about the power of friendship and the importance of fighting for what is right.