Board Thread:Boruto: Naruto the Movie/@comment-26010916-20150806143152/@comment-3965545-20150816192321

very strong emotions further the evolution.. but traumatizing sad moments awaken the Sharingan, and the Mangekyo Sharingan. Obito losing Rin caused him to awaken MS, in the process maturing through all the stages to get there automatically.. so even a 1 tomoe Sharingan user can awaken the Mangekyo Sharingan just from traumatizing emotional moments. Sarada still has that chance