Old Gladius

Find Manji in Perion.

I came across Manji again, whom I had first met in Perion when making the medicine for Maya, the little girl in Henesys. Surprised at how much stronger I had become, Manji asked me for a favor. Long ago, when he was in danger of being struck down by Balrog, he was saved by the legendary hero Tristan, who died in his place. Ever since then, Manji had held onto Tristan’s sword. But the blade, corrupted by Balrog’s evil aura, has become so worn down that it can hardly even be called a sword anymore…
Manji handed me the 黄沙之剑 he had been keeping and asked me to awaken it back to its true form. Once fully awakened, it is said to become the 旧战剑. Just as Manji said, I should seek out Chrishrama in Sleepywood.

I met Chrishrama in Sleepywood and was able to ask him how to awaken the 黄沙之剑.