Denki Kaminari trains to become the Pro Hero Chargebolt at U.A. High School. Born in Saitama Prefecture, his distinctive features include short blonde hair with a natural black lightning-shaped streak on his left fringe, golden eyes, a slim build, and a height of 168 cm (5'6"). His appearance evolves, gaining a scar on his upper left forehead during the Paranormal Liberation War, largely hidden by his hair.
His initial hero costume features a black open jacket with white lightning patterns, a white shirt, black pants with white stripes, brown shoes, and a disc-shaped pointer support item for aiming his Quirk, plus a communication earpiece for electrical signals. A second costume update incorporates a shorter jacket with reduced lightning motifs, a white V-neck shirt, a black choker, an optical visor headset, and wrist-mounted Sharpshooting Gear firing disc-shaped "Pointers" for precise electrical attacks. Eight years post-graduation, the costume further streamlines with upgraded Sharpshooting Gear featuring ammunition capsules and refined white patterns on the pants.
Energetic, sociable, and flirtatious, Denki often engages in class-clown antics with Minoru Mineta. Academically, he ranks lowest in Class 1-A, showing disinterest in studies and exam anxiety, yet displays unexpected knowledge in literature, art, and music. He panics under pressure but demonstrates loyalty and protective instincts toward classmates. Exceeding his Quirk's wattage limit triggers a temporary "idiot mode," characterized by giggling and thumbs-up gestures, leaving him unable to use his powers for roughly an hour. He handles romantic rejections calmly.
His Quirk, Electrification, generates and discharges electricity from his body. Offensively, it paralyzes or incapacitates targets. Defensively, it forms a conductive shield and allows him to absorb external electrical attacks like a lightning rod. Key limitations include:
- Inability to precisely control electricity without support gear.
- Risk of collateral damage to allies during wide-range attacks.
- Brain short-circuiting when output exceeds 1.3 million volts, worsening at 2 million volts.
His Ultimate Moves are "Indiscriminate Shock" (1.3 million/2 million volts), "Human Stun Gun" for close-range defense, "Target Electro" for aimed shots via Pointers, and "Electromagnetic Rail Gun," a collaborative attack with Momo Yaoyorozu using her railgun creation.
Though physically average (power: 3–4/6, speed: 3/6), Denki's tactical intellect surfaces critically. At U.S.J., he neutralized multiple villains with an indiscriminate discharge. During the U.A. Sports Festival, he short-circuited a giant robot but lost to Ibara Shiozaki due to her Quirk's electrical immunity. In the Joint Training Battle, he exploited this knowledge, acting as a decoy so Hitoshi Shinso could brainwash her, securing their team's victory. During the Provisional License Exam, he subdued Seiji Shishikura using his Sharpshooting Gear, freeing Eijiro Kirishima and Katsuki Bakugo. On Nabu Island, he countered Nine's lightning attacks by absorption and later interned with The Lurkers (Edgeshot, Kamui Woods, Mt. Lady) to refine team coordination.
Eight years after the Final War, Denki graduates from U.A. and attains the rank of No. 44 Pro Hero. His Sharpshooting Gear and costume receive further enhancements, reflecting his continued growth.
Trivia:
- His name's kanji translates to "above sound electricity," referencing thunder and electricity.
- He enjoys hamburgers, burnt toast, rock music, video games, and trendy fashion.
- In popularity polls, he consistently ranks in the top 20, peaking at 8th place.
- His early character design resembled Present Mic and was more villainous in appearance.