Time

The intense power of his level-eight immortal flame, Luminous Starry Sky, fully manifested at this moment. The Zenith Divine Metal fused with the Heavenly Aqua Saber in no time. Di Jiu didn't even need to put his smithing skills to work. He could already sense the Heavenly Aqua Saber advancing to the next level.

Violet Aqua Sand was indeed a top-notch treasure. Otherwise, he would have had to melt the Heavenly Aqua Saber and re-craft it in order to upgrade it.

The Zenith Divine Metal gradually disappeared as the Heavenly Aqua Saber vibrated and flashed constantly. Its aura also surged rapidly. After a single day, Di Jiu heard a sharp buzz coming from the Heavenly Aqua Saber before a light blue saber floated in front of him, exuding an almighty aura.

Judging by the Heavenly Aqua Saber's aura, Di Jiu knew that it had advanced to a high-grade immortal weapon. It didn't shrink in the process. Instead, it remained three feet and nine inches long.