Summer 2015 Crystal Bingsoo

Summer 2015 Crystal Bingsoo is an S-grade treasure obtained from the limited-time event, Make your own Bingsoo.

Passive Effect
50-78% chance of obtaining 2 Crystals upon first login before Aug. 28, 2015

Description
''In the winter, the cookies love drinking warm milk, 'but in the summer, they just can't get enough of this special Bingsoo!

PLEASE NOTE that if you sell this treasure it can't be obtained again.''

Trivia

 * This is the second treasure, after Halloween Witch's Hat, to have an expiration date for its effects.
 * The treasure used to have the shortest expiration span of only 60 days from the first day the treasure's passive effect become effective (one day after release day) until the expiration date. Later, another temporary-effect treasure, Lemon Cookie's Magic Cube Keychain was released with only 42 working days for its effects.
 * This is the second treasure, after Commemorative 4 Layer Cake to have an event reward with both S-grade treasure and Crystal-generating treasures.
 * It is also the treasure with the highest probability of generating Crystals every day. This also means that it has the highest average Crystal generation per day (1.56 at level +9).
 * After the expiration date, this treasure will not be deleted. This is done so users can use it in their preferred way of extracting for Magic Powder, selling, or keeping it as memory of the treasure after the expiration date.