Jyuubi And Her Mate(A Naruto fanfic)

As they grow older,Kakashi and Obito start competing for Rin,but Rin seems to like Kakashi.Obito does manage to win someone's affections though.

In this story,Kakashi,Rin and Obito grow up together.Grow close as ninja and friends.Not peacefully though.There's a classic villain that wants to enslave the entire world,and has a particular hate toward the Leaf Village.They aren't Uchiha,but have the classic Sharingan Eyes.No one is sure who this being is,and why they want to enslave everyone.They do have an idea of their abilities though.

They have some of Ten Tails' chakra,his life force,in them.Like a Jinchurriki.

Soon after this being leads an attack on Konoha,a stranger comes.Krilun.Obito is enchanted with her,and tries to win her affections.And,he succeeds.It even turns to love.Kakashi and Rin have always been suspicious of her though,and try to dig up dirt on her.