After obtaining this accessory, head onto the bridge to the right. The Killing Intent Tower is filled with shield-bearing soldiers, so remember to bring something that can break shields.
Keep going forward. There's a save point on the first floor; make sure to save.
Pay attention here. First, fully upgrade the weapon "Demon Saw" and the Shadow Armament "Iron Gauntlets," as we'll need them at the top of the tower.
After upgrading, set off. Head to the right of the save point and climb over the wall.
Once across, defeat the Bronze Man here, then head outside to the right.
At the end of the path, you can pick up Killing Intent Amber Fragment #1.
