Charanko

Charanko (チャランコ) is Bang's only and last disciple before he was recently "expelled" for some reason that is anything to do with his master and his former number 1 disciple, Garou.

Appearance
Charanko has messy, light-colored hair and wears a white gi. He also boasts a muscular frame, although this is hardly indicative of his strength, or lack thereof.

Personality
Charanko is a loudmouthed braggart, arrogantly challenging Saitama and Genos for their disinterest in Bang's martial art without knowing of their ability. When Saitama comments on Bang's strength, Charanko speaks out again, eagerly describing his master's martial arts ability as well as his hero rank, only to be quickly silenced by his master's reprimand. Upon finding out why his master "expelled", but ignore his warning, Charanko has a sense of martial art's honor towards any fellow Dojos in which his former fellow disciple, Garou destroyed.

Paradise Group Arc
Charanko, along with King, makes a cameo when the Paradise Group throws a rock and destroys the dung-shaped figure atop Monier's building and screams in surprise at the action.

S-Class Hero Arc
Charanko appears when Bang demonstrates the Ryusui Gansai Ken to Saitama and Genos and becomes enraged at their dismissal of the martial art, challenging them both but is quickly subdued by Genos. He then boasts about his master's strength when Saitama notes it, only to be cut off by said master, who reprimands him for speaking out of turn. When the S-class heroes are called to the Heroes Association HQ, Charanko is left in charge of the dojo.

Garou Arc
While training with his master, Charanko felt that Bang wasn't behaving like his usual. Later, Charanko is expelled from the dojo because of his master's worry over him and Garou. However, Bang gives the excuse that he had been holding him back for a past half-year and had not been doing anything. He later visits Bang's allies at Saitama's apartment to give a news about his master's strange attitude. Not only is he surprised that Saitama and Genos gained more allies (King and Blizzard of Hell), he finds out that Bang's strange attitude was because of his former disciple, Garou who was still starting his hero hunt and was a large threat, being considered a human monster. Ignoring his master's warning, Charanko foolishly rushes to Garou to avenge Bang and his dojo's honor, this being after the tank top brothers and licenseless rider are both defeated. However, he is easily defeated as well. The next scene shows Bang lamenting over how he was too late to arrive at the scene with his elder brother, Bomb.

Abilities
Charanko seems to possess martial arts abilities, but is never seen demonstrating them, as Genos was able to overpower him instantly, upon which he surrendered. However, his martial arts skills is albeit weak against a high potential threat like Garou.