This unique item is hidden in White Temple 2F. The area is a maze full of warps. To get the item follow these steps (directions are based on the in-game compass): from the start move south, west door, north door, north door, west door, north door, then turn around and open the door you just came in from. After warping, turn around and the cache cube should be there. The Blessed Fan is an infinite-use item that can be used to cast an Expel spell that has a low chance of killing the enemy party. You can discard or sell the item (50000) but you will never get another one if you do so.