Raiden

Raiden (ライデン, Raiden) is a Super Sumo champion. He works as a hero for the Neo Heroes.

Appearance
Raiden is a very large and muscular man with black hair and dark eyes. He sports the traditional rikishi appearance, complete with a white fundoshi and a chonmage topknot haircut.

Personality
Raiden is adamant about not joining the current Hero Association. He instead gets contracted with the Neo Heroes.

History
When he was an active professional Super Sumo wrestler, Raiden fought and won 700 consecutive fights, becoming the Super Sumo Yokozuna and gaining a reputation as the strongest wrestler of all time.

Because of that, he was visited by scouts sent by the Hero Association multiple times, with the request to join them and work as a professional S-Class Hero. He refused all their offers.

Psychic Sisters Arc
Raiden was once again approached by a Hero Association scout with yet another offer to join their ranks, but the yokozuna yet again refused their offer. This time revealing to the scout that he was already contracted with the Neo Heroes, which is a new hero organization that is set to replace the current Hero Association as the defenders of mankind.

Abilities and Powers
Raiden is known to have a "strength that surpasses knowledge", prompting the Hero Association to repeatedly invite him to join them as an S-Class Hero.

Trivia

 * Raiden may be a reference to the famous sumo wrestler Raiden Tameemon (雷電爲右衞門).