y/n and Kai Smith are in a friends with benefits type situation. they both figured it was a good idea and that no strings were attached. the only problem is y/n starts to get real feelings for the fire ninja. eventually, after years of friends with benefits, she decides she has enough. she knows Kai wouldnt ever actually like her more than just for their agreement and feels like the ninja were fine without her anyway, so she decides to pack up and leave.