After the completion of The King of Iron First Tournament 4, a fierce battle between father and son unfolded at Mishima Heihachi, his grandfather-but spares both Kazuya and Heihachi s lives in honor of his mother who loved peace. While many presume the death of Heihachi Mishima will end the reign of Mishima Zaibatsu, an announcement is made for the fifth king of Iron First Tournament, with an unknown replacement to Heihachi leading the organization. The fight begins.