沐月 is transported to the Naruto world and becomes an ordinary Chunin teacher at the Konoha Ninja Academy, and also a member of the Root organization. Luckily, she awakens a teacher system that allows her to grow stronger by teaching. To avoid becoming a consumable for Danzo, she strives to improve her strength through teaching. "For the first time completing a level A teaching evaluation, I received a reward—Mastery of Fire-Nature Chakra Transformation." "Due to your guidance, Uchiha Shisui diligently trained, resulting in a significant improvement in his overall strength. Reward received—Sage Body!" Under 沐月's guidance, Shisui understands that the village's enemies aren't only other great nations but may also be within the village. Those who speak eloquently of the Will of Fire may not necessarily act according to it. Obito escapes his title as a dead last in the academy, and Might Guy becomes a taijutsu master earlier than in the original timeline...