The Red Dog Must Die means that Akainu (nicknamed Red Dog) in One Piece must die because he killed Ace. With the end of the epic war, fans of the Dead Sea facing Ace are excited.
However, the person everyone hates the most is not the traitorous Blackbeard who takes advantage of the situation, but the person who frustrates the enemy's energy and takes the lead. The Akainu of Kung Fu, so it is said that the "red dog" will die.