A crook box that replaces a costume with a random costume enchant stone box.
You can get 20 kinds of costumes you can buy in September. You can get one of the following Enchant Stone Boxes.

Costume Enchant Stone Box13
Costume Enchant Stone Box14
Costume Enchant Stone Box15
Costume Enchant Stone Box16

The following is a list of costumes you can exchange.

Costume Chain Puppet
Costume Dropping Argiope
Costume Baby Pinguin
Costume Sorcerer Hood
Costume Fluffy Heart Earmuffs
Costume Floating Ice
Costume Ghost Holiday
Costume Blessing Sky Lantern
Costume Celestial Circle
Costume Elephangel
Costume Flying Drone
Costume Bouquet Hat
Costume Poring Muffler
Costume Happy Rabbit Ribbon
Costume Sepia Cap
Costume Birdcage of Paradise
Costume Monk Crown
Costume White Rabbit Ears
Costume Autumn Headband
Costume Hopping Rabbit

[iRO Description]
Not Available