I Play Cultivation in Naruto

When a modern young man travels to Naruto, after he understands the nature of chakra and ninjutsu. The style of painting changed, and he turned on the immortal cultivation mode in Naruto. Wind escape, fire escape, etc. What level can Sifeng improve his ninjutsu to? S level? Or SS level, or SSS level? In fact, it is neither. Susanoo may not even be able to pick up any of his random techniques. Do you have Sharingan, Mangekyo Sharingan, Rinnegan, Byakugan? If I don't have pupil skills, then I will develop my own pupil skills. With the blessing of cultivating immortals, what kind of eye skills will be developed? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.