Jun Kazama was not playable after what appeared to be her “death” in Tekken 2 until the non-canonical sequel Tekken Tag Tournament 2, where she played the final Boss. For the first time in Tekken’s history, Jun will finally return in canonical game and she still looks great for her age. Jin Kazama sees Jun as the embodiment of everything that is Good in him. You can see their close relationship in the Netflix Anime,Tekken: Bloodline
Tekken: Bloodline is the rise of Jin Kazama before the Events of Tekken 3. There have been previous attempts to animate Tekken, but most of them are one-shot films that are not canon. This trailer shows a not-yet-muscular Jin Kazama being coached to fight by his Mother, Jun Kazama, and she trains him because he is being bullied. Through his intensive training from his mother, he gets to defeat the Bullies, but the skills he learned from his mom are not enough to defend her from Ogre, an Ancient Mayan God.