Naruto: Starting with the Eight Gates

[Hokage + one heroine + everyday life + System] Xia Mu accidentally transmigrated to the world of Hokage, where he became a medical ninja and activated a Medical System while treating patients. [Ding! First treatment reward: Eight Gates Released Formation.] [Ding! Treatment reward: Sage Body!] [Ding! First treatment of a summoning beast: one chance to choose a ninja beast as a reward!] Well, would you look at that! Treating people could earn him ninjutsu, chakra, and even summoning beasts... Xia Mu decided to lie low at Konoha Hospital until the Second Shinobi World War broke out before long, quietly growing into a powerhouse. No one was going to stop him from getting stronger!