Image result for deku description my hero academia Deku's personality shows that he's a very timid and kind boy. He's also very polite, caring, and strong-willed. Sometimes he can be dramatic, and often he is loud during battle. This is because winning is one of his goals so he can become the greatest hero. allows the user to change the velocity of anything they touch, meaning they can spontaneously slow things down, or speed things up.