The Kokiri Sword can be found in Shrouded Grove in a small, Expert-locked chest. The sword acts as a dagger and is equal in strength to a Glass Dagger, but lighter and quicker. It also can deliver significantly more critical damage than daggers. It is temperable with a quicksilver ingot.
You can reforge the Kokiri Sword into the Razor Sword at the Skyforge with Level 40 Smithing Skill 1 dwarven ingot leather strips 2 steel ingots
The Razor Sword can be reforged at the Skyforge into the Gilded Sword with