1800 years ago, the monster formed by human evil thoughts, Yamata no Orochi, ravaged the world and was sealed by martial artists led by the Kusanagi family with three artifacts. In modern times, the world mixed martial arts competition, THE KING OFFIGHTERS (KOF for short), was held, and fighting masters from all over the world gathered in Nanzhen. After the heir of the Kusanagi family, Kyo Kusanagi, came to Nanzhen, he keenly felt the revival of the power of the snake. All signs showed that there was a huge conspiracy behind the KOF competition. With the convening of the KOF competition, all the teams, with their own goals, were gradually pulled together by the hand of fate. The evil forces behind the scenes have already laid a dragnet, ready to catch all the fighters in one fell swoop. The showdown between justice and evil is imminent!