Naruto: Forging Kamui and Seizing Asura's Power

After transmigrating into Naruto, Cangji awakens a God-tier Forging System: any material can be turned into an incredible piece of equipment. During the Nine-Tails' attack, he finds a strand of the Nine-Tails' hair and forges it into a Kurama Ring, greatly increasing his chakra recovery speed. On Hokage Rock, he casually picks up a stone and appraises it as a lucky bracelet that can protect him from indiscriminate area attacks. When Rock Lee gets a scrape, Cangji gets his hands on a headband soaked in the spirit of youth, dramatically boosting his body's toughness.

When Naruto Uzumaki comes over to strike up a conversation, Cangji pretends to be indifferent, while secretly stealing "the incomplete blood of a Sage, the power of Asura" from Naruto's wound. A System notification pops up: it can be forged into a Sage Crystal. Swallow it, and a perfect Sage Body is his; his chakra reserves will leap from enough for just one Transformation Technique to jonin level. He restrains himself and lies low for a month, avoiding round-the-clock surveillance by Danzo's Anbu, before finally swallowing the crystal.

On the night his body is remade, he goes to Yakiniku Q and runs into Choza Akimichi. He casually plucks out a hair, and the System chimes again: giant's hair, suitable for forging a giant's bracelet. Looking at the table piled with barbecue, he can't keep the grin off his face.

Who should he pluck his next material from?

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.