I’m upgrading my weapons alone, the Knight Killer, the Fangs, the Twin Blades

Description

In the adventure of this magical continent, the strength of weapons is directly related to life and death. I tightly held onto the Knight Killer’s Poison Fang Double Blade, knowing that enhancing its power was urgent.
When I got this pair of knives, they emitted a faint deadly aura. The blade is a deep blue, with patterns resembling poisonous veins. The cutting edge is sharp, and in the flickering cold light, one can smell the scent of death. However, in order for it to unleash its true terrifying power, upgrading is imperative.
I shuttle through the deep and dark ruins. There is a pervasive sense of decay here, with monsters lurking in the shadows, waiting for opportunities to move. Every swing of the twin swords is accompanied by the roar of monsters and their own danger. In a fierce battle with a giant venomous spider, its spider silk attacked like a tough rope. I dodged sideways and drew my twin knives, leaving marks on the spider’s hard shell. Blood mixed with venom splattered everywhere. After the fierce battle, I dragged my exhausted body and picked out the crystal core with glimmering light and toxic essence from the materials dropped by the poisonous spider, which is a precious material for upgrading the twin sabres.
In the magic workshop, the fire is burning brightly. I will arrange the collected materials one by one and blend them into the double knives according to the order recorded in ancient books. At high temperatures, the material gradually melts and seeps into the blade, giving off an increasingly intense blue glow. Engraving runes is a crucial step. I hold a carving knife and carefully carve mysterious symbols on the blade. The runes flicker, as if resonating with the power of the two knives.