A box containing 5 Convex Mirrors. Please take a care because is fragile.

Convex Mirror - The person in possession of the mirror can detect the appearance of the boss monsters.
It has 10 minutes duration and the effect is removed when the player goes out of the map after using the item or quit the game.
Some of the MVP monsters can not be detected.

Once this item is purchased, termination of contract is impossible. Also, this item is not refundable.