kazuya's lover who is jun is jin's mother making kazuya jin's father.
Kazuya is Jin's father. Maybe... Kazuya left them when Jin was young or whatever.
Jin got his father's (Kazuya Mishima) Devil Gene.
because he wants to kill the evil that is inside of kazuya
His father is kazuya and his father have the devil genes. Him and jin's mom ''jun'' started somehow liking each other and they umm....had him so now he has the same genes as kazuya.
Kazuya wants Jin's devil gene and Jin wants to kill Kazuya for all tha things Kazuya has done to him earlier
Jin is the son of Kazuya and Jun, and therefore Heiachi's grandson.
Kazuya is a guy in Tekken that is the father of Jin, son of Heihachi and the husband of Jun, which only comes out in some games of Tekken
His father is Kazuya Mishima. Jin was raised in the mountains by his mother Jun Kazama because she wants to keep Jin away from Kazuya since he possesses the Devil Gene. When Jun was attacked by ogre, she ordered Jin to go to Heihachi Mishima, his grandfather, for help.
At 5 years old, Kazuya Mishima was thrown off a cliff by his father, Heihachi. Wanting revenge, he sold his soul to the Devil. So therefore, Kazuya had the devil inside of him/ the devil gene. During The King of Iron Fist 2 (Tekken 2) Jun and Kazuya were intimate, and conceived Jin. Because Kazuya had the devil gene, Jin had it, thus he becomes Devil Jin.
Lee Chaolan, Heihachi, Jinpachi and Raven likes Kazuya. Even, Jin knows him, but Devil Kazuya, Asuka and Jun don't.
He's the son of Jinpachi Mishima, the father of Kazuya Mishima and Lars Alexandersson, the adopted father of Lee Chaolan, and the grandfather of Jin Kazama.
No there's no Devil Kazuya in Tekken 5. The devil gene in that version is present in Jin Kazama and he is Devil Jin. The Devil Kazuya appeared only in Tekken Tag Tournament. It is said that the devil gene from Kazuya was passed on to his son Jin that's why he became the devil later on.