Kakairu- So, this is love

The copy-ninja Hatake Kakashi has gone through a lot in his life. Being a jounin at age 12 and joining the ANBU, He had to see and experience things that a child never should. He lost his father, his teammates and his sensei at a very young age and was raised to be a mere killing machine to the hidden leaf village.

Now upon him meeting one very cute and friendly, brown haired chunin academy- sensei, will the silver haired jounin's life change for the better?