The title of the event is “Re: Emilia’s Birthday Life From Zero.”
The title suggests that it is a prequel story to the upcoming OVA Re:Zero − Starting Life in Another World: Memory Snow that will get its theatrical run in Japan from October 6.
And purchasers with over 3,000 yen worth of the birthday event’s limited goods will also get an illustration card with a printed autograph by Emilia’s anime VA Rie Takahashi. prequel short novel book as a bonus.