"Blue J: Welcome to Animalland" follows the story of Jaemo, a sarcastic and rebellious youngster with a secret: he is the masked hero Blue J, who protects the city of Animalland against dark threats. While dealing with the pressure of hiding his secret identity from friends and authorities, Jaemo finds himself in the middle of a battle between the government and the city's villains. With his sharp intelligence and unique skills, he faces exciting challenges and discovers the true meaning of courage and friendship.