https://www.gamespot.com/articles/new-attack-on-titan-event-coming-to-crunchyrolls-a/1100-6462373/

Crunchyroll has announced that DanMachi: Memoria Freese, a free mobile RPG that uses characters from the anime Is it Wrong to Try to Pick Up Girls in a Dungeon, will have a limited-time Attack on Titan event. The event is exclusive to North America.

The event incorporates lines spoken from the original actors from the Attack on Titan anime. You'll be able to have characters from both Titan and Dungeon team up together as they defend Orario from a Titan's attack. The event launches on October 30 at 7 PM PT / 10 PM ET.