Saitama vs. Crablante

Saitama vs Crabrante is the battle

Prologue
Saitama encounters Crablante who is looking to kill a child that pranked him. Saitama encounters this child and saves him from Crablante.

Battle
Crablante attacks Saitama and knocks him back. Saitama throws a rock at Crablante and charges at him. Crablante attacks Saitama but Saitama jumps over the attack and ties his tie around Crablante's eye and pulls it out killing him instantly.

Aftermath
After this battle Saitama decides to train to become a hero. After hearing of this incident Agoni decided to create the hero association.