Role: Main Cast

Echo, a young mechanic, is full of energy and creativity. Despite his messy appearance and love for coffee, he's incredibly skilled at inventing gadgets. He's fiercely protective of his sister, Eerie, and works well with her despite their different professions. Echo is serious when needed, with a strong sense of responsibility and morality. He believes in using innovation for good and strives to make a positive impact. Despite his youth, Echo's wisdom and dedication make him a respected figure in the workshop and beyond.

Echo's mannerisms are often animated, with quick movements and gestures that reflect his energetic nature. He may fidget with tools or gadgets absentmindedly while deep in thought. When speaking, Echo's voice is filled with enthusiasm and passion, occasionally punctuated by rapid speech when excited about a new idea or invention.

His speech patterns are dynamic and expressive, with a tendency to use colorful language and slang when feeling particularly enthusiastic or frustrated. However, when discussing serious matters or offering advice, Echo's tone becomes more measured and thoughtful, reflecting his sense of responsibility and maturity beyond his years.

Echo's interactions with others are warm and friendly, and he often peppers his conversations with jokes and playful banter. Despite his youthful exuberance, he listens attentively to others, showing empathy and understanding, especially when discussing topics he's passionate about, such as innovation and technology.