Jun Kazama (風間準 Kazama Jun) was introduced in Tekken 2. She was portrayed as a mysterious and fearless woman, a fighter for peace. Though initially entering the second tournament to stop Kazuya Mishima (She was a WWWC officer at the time), it was implied that the two were attracted to one another (With Kazuya's dialogue in the Scenario Campaign describing her as "Mysterious"), and eventually led to her impregnation of Jin. After the tournament, she moved on to a more reclusive life in the forests, however, Devil, who had lost his main host (Kazuya had been killed by Heihachi at this point), attempted to possess Jin though Jun successfully drove him away. Later in life, her peaceful life with Jin ended when Ogre began attacking and slaughtering participants of the second tournament. Jun was among his victims, as her windmill kick is among Ogre's command. During the struggle, she urged Jin to flee to Heihachi. This would be the last time Jin would see his mother, as Ogre had knocked him unconscious. During her absence, a portion of Devil finally managed to enter Jin.
Though still missing, her continuous presence and teachings have helped prevent Jin from being completely controlled by the Devil Gene. The very first occurrence happened during the fourth tournament, where her image prevented Jin from killing his father and grandfather outright. In numerous occasions, Harada himself has personally stated that Jun's current status is only considered as "Missing", not dead. This has led to speculation on to her next canonical appearance in future Tekken games. Initially, prior to Tekken Tag Tournament 2's release, Harada stated that if he had enough followers and people who tweeted to bring Jun back, he would do so. Soon enough, he did receive more than the prescribed followers, and Jun was indeed included into the game.
Her title in the original trilogy is Ecological Fighter.