Saitama vs. Speed-o'-Sound Sonic: Round Three

Saitama vs. Speed-o'-Sound Sonic: Round Three is the third fight between the B-Class hero Saitama and Speed-o'-Sound Sonic.

Prologue
Following the ongoing battle of Genos vs. Speed-o'-Sound Sonic, Genos decides to blast the entire area with his Incineration Cannon in order to beat Sonic. Before Genos could do so, he is knocked down by Saitama who didn't wanted his place to be destroyed. Saitama scolds Genos for not having any reason to fight Sonic. Saitama then decides to fight Sonic seriously due to his persistency, to which Sonic gleefully declares he will show his newly developed technique.

Battle
Sonic attacks Saitama with his ultimate technique: Ten Shadows Burial. Genos remarks that Sonic must've done crazy training to create such a technique, while Fubuki deduces that Sonic's combat skills are S-class, and that naturally, Saitama shouldn't stand a chance. While preparing for the kill, Sonic thinks to himself that he always feels helpless against Saitama, and that he must win, or else he will never be able to move on from this crippling mentality. Saitama bends his knees, widens his stance, and counters with his own super move: Serious Series - Serious Side Hops, creating an infinite amount of clones and starts moving forward with it, all the while causing tremendous shock-waves that easily destroy Sonic's clones, beating him and ending the battle effortlessly yet again.

Aftermath
Sonic then appears to be knocked out, which to Genos resembles death, but Sonic managed to instantly leave. Fubuki, seeing everything, claims Saitama to be too strong, and her obsession to make him join her group grown even further.