Jun is an animal ranger when she was young, sooner, she fell in love with Kazuya, Jin's father. Years had passed, Jun was the one who took care of her son(Jin), raising him as a single mother, and had trained him both the Mishima and Kazama fighting styles. On Jin's fifteenth birthday, they were attacked by an ogre, Jun was the one who fought with it and eventually after the fight. Jun was nowhere to be found, reasoning why Jin believed his mother died, even though she didn't.