Fairyland has posted a notice about an upcoming event for April.
From the company:
We are happy to announce upcoming event schedule which will run from April 11th till May 31st in KST (Korean Standard Time).
No further details have been revealed to us as of yet but we expect more information will be available closer to the time of the actual event commencement date.
If you have any other questions or requests, please do not hesitate to contact us via CS, email or 1:1 board.
Thank you and have a nice day.