Duck is an Asian boy with a love of swimming. He has the power to control his density; he can make himself so light that he floats into the air, or so heavy that he can drill through the ground. He has a highly introverted personality, being described as unattractive and unable to socialize with girls. He is initially terrified of and ridiculed for his power. Due to his shyness, he is largely unaware of the social goings-on of the FAYZ - something which nearly causes his death, as he walks unaware into a Human Crew mob.