Naruto: Others Practice Ninjutsu While I Practice Immortality

Hokage + cultivator, become a big boss in Yuyin Village. Yunfeng, the former Hinata's legacy, the younger brother of Hyuga Neji, is now a genin of Amegakure, and works part-time as a reserve soldier for cultivating immortals. His daily life: pretending to be good in front of Payne, pretending to be pure in front of Xiaonan, secretly converting chakra into spiritual power under the guidance of the system. His teammates: the future animal path, Hydrangea, and the honest earth escape master, Iwasa. His teacher: Night Killer Ye Linglong, who is suspected of having a blood successor. His observers: Tendo Pain, Angel Konan, Uchiha Obito, Black Zetsu... Many years later... Obito (breaks defense): "Wait a minute! Why can your eyes evolve into the Tsanseigan? Where did you get the sage mode??" Madara: "This guy doesn't seem to be in sage mode, he's stronger than sage mode!" Black Zetsu: "This guy is hindering my plan, damn it!" Yu Yunfeng scratched his head: "Well... It's a long story, and I have to start with my secret cultivation of immortality in Yuyin Village."