Ice Escape Sage in the Ninja World

A modern mercenary who wanders between life and death, his soul carries a powerful modern scientific crystal "optical brain" and travels to the world of Naruto. Using his optical brain, he can fuse the "wind" and "water" attribute chakras into the "Ice Release" Blood Succession Limit... Using the optical brain, he can discover the "natural energy" floating in the world to practice immortality... Using the optical brain, he can also...

This is a complete Naruto fanfic. The author's writing style is acceptable and he can solidly follow his own plot. He does not blindly surpass the original writing. It is very valuable. I recommend it to friends who like Naruto fanfics.