WARNING: The following article contains spoilers for One-Punch Man Chapter 113, by ONE and Yusuke Murata, available now in English from Viz Media.
While aimlessly wandering the Monster Association Headquarters, Saitama has accomplished a shocking amount, having defeated several powerful foes including the Monster King Orochi. However, there are still those who don't recognize him for the unstoppable hero that he is. Among them is Flashy Flash, who, in One-Punch Man Chapter 113, tries to fight Saitama.
An immensely skilled swordsman and fighter, Flash Flash is an S-Class hero. Since making his debut in Chapter 29, Flashy Flash has defeated a number of high-profile monsters, proving himself worthy of the respect he commands. However, Flashy Flash is also pretty rude and prideful, which is what gets him into trouble with Saitama.
The S-Class hero hears Saitama walking down a hall and ambushes him. However, his swing misses. As Flashy Flash is particularly fast, he's quite confused as to just how Saitama dodged his attack. Eventually, the S-Class hero realizes that he's seen Saitama before, but his pride makes him continue to wonder just how the much-lower-ranked hero could be so fast.
Flashy Flash then unleashes his Flashy Slash. However, Saitama grabs the sword with one hand and prepares to unleash a blow against the S-Class hero, thinking he must be a monster if he's attacking like this. Although the S-Class hero objects to being talked about in this way, Saitama then suggests Flashy Flash's monster name would be "Toolong Bangs."
Although the two prepare to face off against each other, they never actually come to serious blows, as Flashy Flash lies -- claiming that attacking Saitama was a mistake. He then tells Saitama to leave the headquarters, as they're dangerous. This results in Saitama finally realizing he's at the Monster Association, so he insists on staying.
Flashy Flash continues to goad Saitama by claiming he's not that strong. However, the title hero has fun with the whole interaction, recognizing he's already beaten Orochi, whom Flashy Flash knows is incredibly powerful. Flashy Flash then attempts to leave Saitama behind, but he's unable to shake his new friend.
Since Saitama already defeated Orochi, the hero's confrontation with Flashy Flash ends up being more humorous than serious. However, there are very few people who know Saitama's true strength, and Flashy Flash now has some inkling that there might be more to the bald hero than meets the eye. As the S-Class heroes continue sweeping up the remaining monsters, Saitama and Flashy Flash are going to have some time to bond, effectively bringing another ally to the titular One-Punch Man's side.
One-Punch Man's next installment arrives in English on Jan. 22 from Viz Media.