One Hit to Kill! Saitama's Holy Grail Legend

One hit to kill! Love warrior! The legendary brave man! Saitama is here! Ah da da da da da da! You are already dead. Oh la oh la oh la oh la! I'm here to save this world! Crossing time and space, breaking through dimensions, heroes and warriors from all walks of life! Compete for the honor of being the strongest on this miraculous stage!