Denki has short gold hair, parted to the right with a black lightning-shaped streak on the left of his side fringe, which is angled to partially obscure his left eye. He has slanted, somewhat triangular golden eyes and notably small eyebrows. Denki's Quirk Electrification allows him to discharge electricity and emit it out of his body in powerful blasts. This Quirk serves well in both offence and defense, as the electricity shocks anyone it comes into contact with.