after the end of king of iron fist tournament 4, father kazuya mishima and son jin kazama, battle each other at honmaru, somewhere in the mishima estate. jin quickly beats his father. the oldest mishima, heihachi, enters the honmaru to find his son defeated and asleep. heihachi and jin begin to fight. during the fight, jin begins to show the devil he got from his father, kazuya. just as it appears that jin will kill heihachi, jin suddenly gains control of his body and flies away.