Sunadokei

Almost three decades of constant war gives three ninja the mindset needed to change it all. And, as Kakashi later reflected, he should never bother to agree with Obito. Because the outcome of a 'stupid mission' has some surprising consequences... If he can ever forgive 'Hayashi Hyosuke' for letting Obito and Rin die. TimeTravel. OCs. Lots of pairings. 'T' to be safe later on.