Senku is a scrawny and physically weak young man of average height with pale skin. He has white hair that fades to green towards the ends, spiking up naturally into soft tips. Two locks of hair drape over his face. He has sharp red eyes, slim eyebrows, a small nose, and a mouth that tends to curl into an evil grin. Apathetic when it comes to romance. straightforward, confident, and logical individual, who is also aware of the limits of his abilities. vast knowledge of science. Science fanatic.