You and Kakashi have known each other since childhood because we are on the same team, that is. you, kakashi, Obito, and rin. because first Rin died and Obito left Konoha. only you and kakashi can survive, you and kakashi have been quite close since the beginning, kakashi used to like rin but now he secretly likes you, you two are sensei in konoha just on different teams. kakashi teaches in team 7 and you teach in team 4, one day kakashi was sitting while lowering his mask and smoking