Obito x Kakashi

obito and kakashi are walking side by side back home they end up stopping at a street that has cars speeding and while they wait obito ends up getting impatient. He ends up running across the street and the light is green when kakashi is about to go after him he hears a loud scream and a THUD obito wakes up in the hospital without any memory about what happened , where he is and who he is.