Youyou travels to the ninja world
The system matched him with the cultivation system.
He has no chakra, so he uses immortal cultivation techniques as ninjutsu!
Kyuubi? Just a pet 'dog'
Orochimaru? Your forbidden ninjutsu is not enough!
Uchiha Madara? Can you withstand my thunderous calamity?
Kaguya? Seeing how beautiful you are, I'll take you in!
Tsunade Terumi Mei? Age is not a problem
Hinata Hanabi? Well, I can wait until you grow up!
The ultimate goal! I want to unify the ninja world!
Nascent Soul is written as if it were Qi training