Waterfall's Last
The life of a ninja is a dangerous one, doubly so if you belong to one of the lesser, smaller villages. When Waterfall is overrun by Rock, young Chūnin Umino Iruka is tasked to flee to Fire Country with his village's two most precious assets; their young prince, Shibuki, and the jinchūriki of the Shichibi, Fū. He's hardly surprised when Fire allows them to citizenship - the draw of a second jinchūriki is a strong incentive. Building a life in a new country is hard, but Iruka is determined to full fill his last mission as a Waterfall-nin; provide a happy, healthy home for his charges. Everything is going well - until he meets Uzumaki Naruto.
Suddenly, Iruka is a single father of three at sixteen, living with what has to be the strangest, rudest (and attractive) Alphas he's ever met; Hatake Kakashi.