I'd go back and read up before someone spoils too much for youSo technically Kakasi did't awake the Mangekyo sharingan Obito awake his Mangekyo sharingan by witnessing Rin's death.
So technically Kakasi did't awake the Mangekyo sharingan Obito awake his Mangekyo sharingan by witnessing Rin's death.
Kakasi got his Mangekyo sharingan at the same time as Obito. What is the relation.