As Saitama's wooden-faced fist made contact with Vaccine Man, a powerful shockwave erupted from the impact. Dust and clouds were blown away at an astonishing speed, partially obscuring the view for a moment. Everyone, including the other characters present, was taken aback by the sheer force displayed by Saitama's seemingly effortless blow. Sonic, who had been observing the scene with keen interest, was particularly surprised. He had always seen Saitama as an inferior opponent, believing that his own speed and skills surpassed anything the bald hero could muster. But now, seeing Vaccine Man being blown away so effortlessly, Sonic started to have second thoughts. The other heroes, such as Genos and Bang, were equally stunned. They had witnessed Saitama's overwhelming power before, but this display only reinforced their belief in the bald hero's unparalleled strength. They quickly sprang into action, finishing off the disoriented Vaccine Man with ease. On the other hand, Saitama remained oblivious to the awe-inspiring spectacle he had just created. With his trademark nonchalant expression, he simply brushed off the dust from his clothes and nonchalantly walked away, seemingly unaffected by the encounter. This only added to the mystique surrounding the character, leaving everyone in disbelief. As for Sonic, he couldn't shake off the lingering shock of the brief encounter. His once cocky demeanor had been replaced with a newfound respect for Saitama's power. Deep down, he couldn't help but feel a tinge of jealousy, fueling his desire to challenge Saitama and test his own limits against this seemingly invincible bald hero. And so, a new rivalry was born between Sonic and Saitama, setting the stage for future encounters that would push both characters to their limits.