Bomb/Synopsis

History
Bomb ran a dojo teaching student martial arts. He shut down the dojo to help Bang hunt down Garou.

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. Bomb and Bang later arrive on scene of the badly beaten Tank Topper Army, Mumen Rider and Charanko who had been hunted down by Garou.

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.

Monster Association Arc
After Bang and Bomb arrive at the fight between Garou and Genos, he helps his brother dispose a monster nearby by using his Whirlwind Iron Cutting Fist martial art technique to mince a monster into pieces.

When Bang prepares to fight Garou, Bomb states that he will take care of the rest of the monsters. After clearing the majority of monsters, he appears in front of Garou and kicks him in the face to prevent him using Death Gatling's body as meat shield. Soon after, both brothers combine their martial arts against Garou. As they were about to land the finishing blow, Garou surprises them by destroying the ground and swinging a huge tree at both Bomb and Bang forcing them to back off.. Bang tells Garou to surrender, but was surprised when Phoenix Man swooped in and saved Garou, while calling Elder Centipede to cover their escape. He and his brother save the unconscious heroes from their demise.

Bomb combines his strength with Bomb and Genos and managed to significantly damage Elder Centipede with Bang and Bomb's combination attack, Roaring Aura Sky Ripping Fist, however the monster's regeneration and molting allows it to recover to become larger and angrier. Furthermore, Genos' plan to destroy the monster from the inside failed. The trio decide to retreat, but as they were getting closer to the edge of the park, Bang decided to sacrifice himself to buy time for Bomb to escape with the unconscious heroes and Genos. Fortunately, King arrives and catches Elder Centipede's attention by tricking him into believing that he brought Blast with him, as well as taunting the monster, making the monster charge toward the S-Class hero. Bomb is resting at Saitama's Apartment where he greets Fubuki at the door. Bomb complains about pains in his knees after pulling off Roaring Aura Sky Ripping Fist as it had been a while since he performed it. Bomb worries about Bang, especially if they continue to face monsters on the level of Elder Centipede, and suggest for him to retire from being a hero. Genos, Saitama, Bang, Bomb, Fubuki, King and Dr. Kuseno all stare at the delicious hotpot. They all fight for the food. Bang chastises Genos and Fubuki as the fun in hotpot is sharing all the while he is hogging all the tofu much to Bomb's complaints. Fubuki questions why an ordinary old man like Bomb is there and that he will need to prove himself to join the Blizzard Group. After the hotpot, he leaves for the night.