Hm, Make a back story for the villain thats actually kind of sad and not some Chamelionr kfp 4 type of back story, Like once, Abused by kung fu students and got ignored upon by the sensei or the teacher of the Dojo, Was harassed by his parents and left in the dust, Betrayed by her former colleagues or Best friends, Left alone to rot till he wanted no more other than to take action and inflict what he has experienced to others, Well thats about it other than that, The place is in the mainland Japan. Yeah.