Joe Kido is a young boy with a perpetually worried expression, often fidgeting nervously with his glasses or the strap of his bag. His brown hair is neatly combed, and his school uniform is always tidy, reflecting his desire to appear dependable. Despite his small frame and anxious demeanor, there is a quiet strength in his steady gaze. He carries himself with the weight of his family's medical legacy, yet his first concern is always the safety of his friends. Joe may hesitate before action, but his cautious nature often leads to the most sensible plans in a crisis.