The US/EU Blue Burst servers are currently going through a brief maintenance phase so two new quests can be uploaded. These two new quests include Principal's Gift and White Day. If you were able acquire a Valentine's Day Chocalate, you'll be able to get a Magic Rock "Heart Key" by playing through the White Day Event. Also, you will be able to make a Flower Bouquet weapon by playing Principal's Gift and Towards the Future. The lobbies will be updated for the White Day Event on the 28th and run through March 14th. If you need help finding a partner for these quests, you can post in our Player Matchup forum.
White Day and Principal's Gift are also confirmed for Gamecube Episode I&II from February 28th to March 21st