Your character is selected to attend RAD, a school for demons. As one of the lone humans, you have some very important choices to make, including which of seven demon brothers you're going to set out for.  Said brothers just happen to be the representations of the seven deadly sins.  

Already on social media, I have seen people scrambling for second-hand premier tickets just so they could be as close as possible to the voice actors. Some say they're coming only for this appearance. This is the first in-person appearance for the Obey Me! Boys.

Further details are still light but a panel and autographs have been announced.  I have heard rumors that events will take place on Saturday and Sunday (7/2 and 7/3) but this has not been confirmed.

NTT Solmare Corporation, established in 2002, has been a leading developer and publisher for games focusing on female main characters. Under the Shall We Date? brand, they are the people behind Obey Me!, Blood in Roses, Lost Alice, Wizardess Heart, and many other games.  They will have a booth in the exhibit hall #1906.  It's right behind Aniplex's booth, actually.

 Anime Expo takes place on July 1-4.  Tickets are available at https://www.showclix.com/event/ax22-general-registration-sc22r01