Naruto: Any Ninjutsu That Passes Through My Hands Becomes Magic

He transmigrated into the world of Hokage, and the proficiency-based game he played in his previous life came along with him. The problem was, he’d been playing a cultivation game! [Ding-dong!] [Congratulations, player! You have learned a new spell: Circulating Heaven Breathing!] “I was clearly learning chakra refinement!” Aoki Hiro complained loudly.