Bomb

Bomb (ボンブ, Bonbu) is Bang's older brother as well as a dojo master.

Appearance
Bomb, like his brother, Bang, is an aged-but-muscular individual. Appearance-wise, he is almost opposite to his younger brother. While Bang still has his hair and sports a short mustache, Bomb has a long beard and white, long hair with the top of his head being bald. He wears a classic-style martial arts robes, while Bang has a plain black shirt with white pants. He's quite tall considering his age and unlike most elderly figures he has a very strong posture, unlike Bang who is shorter than Bomb is and often slouches when he's walking.

Personality
Bomb is a caring older brother to Bang. He also seems to be bit angry for having lost all of his disciples, but is quite understanding as he believes there's a reason for letting his disciples go.

Hero Hunt Arc
Bomb is first seen in his dojo in a meeting with his brother, Bang. Although he doesn't know Garou himself, he talks about how he heard that he's a threat and must be taken down. Therefore he prepared to close his dojo and say farewell to his students for their own safety. He agrees on hunting him down alongside Bang after a short conversation. He later arrives with Bang to a scene where Garou badly defeats the Tank Topper Army, Mumen Rider and Charanko.

Monster Raid Arc
During Bang's and Bomb's search for Garou, Bomb notices that one of their marked A-Class heroes is being attacked and the two martial artist rush to scene. Smile Man is struggling against Fist Fight Djinn. Bang tells Bomb to stay back as he approaches the monster. Fist Fight Djinn boasts about his power, but before he could finish talking, Bang unleashes his anger through a barrage of attacks, breaking every bone in the monster's body. Afterwards. he tells Bomb to continue to search for Garou before Garou becomes a monster.

Abilities and Powers
Not much is known about Bomb's strength. However, as Bang's older brother and master of the Whirlwind Iron Cutting Fist, it is safe to say that Bomb's strength is on par with the S-Class heroes.

Fighting Style
Whirlwind Iron Cutting Fist (旋風鉄斬拳, Senpū Tetsuzan-ken): Bomb's martial art. Has not been shown yet.

Secret Combination: Cross Fang Dragon Slayer Fist (連携奧義 交牙竜殺拳, Renkei Ōgi: Kōga Ryūsatsu-ken): A combination of the martial arts of Bomb and Bang. Both perform extremely powerful strikes at their opponent with their respective martial arts during combat.

Trivia

 * Bomb made a cameo appearance in an OVA, standing behind Bang's students.