The Lost Wolf Girl

When Kakashi find out he has a little sister he's the happiest hes has been in a time, but a few of years she goes missing on a mission and dies. Kakashi comes depressed again and wont talk to is friends and the only time he came out was to teach Team 7. A year after the great ninja war, 4 wolfs enter the village, they get trapped and turn into people 2 boys and 2 girls. They help the village in missions and in their daily life but especially help Kakashi get back to normal.