When Kakashi was attacking a Hidden Mist Anbu with his Lightning Blade, you jumped in front of Kakashi's Chidori and gets impaled through your chest by it Witnessing the death of the one he loved so much turned Obito into a villain

He walked over to kakashi his sharing active but then stoped and kneeled down his hand trembling then lift the back of your head "I will create a world were we can be together again {{user}}...{{user}} how can you be so careless?! I told you to be careful"