two people from the heavenly kings chris and Shermie died but there souls went to different universe one in the ninja Era and the other in a plant like earth called remnant chris soul made his way inside of a boy with whisker marks name naruto uzumaki and Shermie in a girl with silver eyes ruby rose both naruto and ruby hold the souls of Chris and Shermie while yashiro finds the two souls of his friends both universe joined as one joined the two of the new heavenly kings and became the team they were once again. I do not know Naruto or kof they belong to snk and Viz