Naruto: Strength Through Teaching

Mutsuki traversed into the world of Naruto, becoming an ordinary middle-level ninja teacher at Konoha's Ninja School and a member of the Root organization. Fortunately, he awakened the teacher system, allowing him to become stronger through teaching. In order not to become a brainless tool for Danzo, Mutsuki diligently teached to enhance his strength. "The first time completing an A-rated teaching evaluation. reward: Complete Mastery in Fire Chakra Nature Transformation." "Your student Shisui gained +30 chakra after hard training. You gained +60 chakra!"