[Event] Refreshingly Special Cake

- Description: A special cake for a special day. One bite of this exquisite cake and you'll never forget this memorable day. - Effect: Item Drop Rate +50% - Duration: 500 min ※ Stacks with all Item Drop Rate buffs. ※ Example of Increased Item Drop Rate Effect When Item Drop Rate +20% is added to an item with a drop rate of 1%, an additional 0.2% is added, increasing the overall drop rate to 1.2%.

- Additional use requirements are not yet decoded; this is not a complete eligibility check.