Izayoi Sakamaki, Asuka Kudou, and You Kasukabe have tremendous psychic powers and are bored with the regular world. An envelope arrives for each person, and when each opens their envelope, they are stunned to see the scenery around them change to a world they had never encountered before. They've been summoned by the Black Rabbit to help the community "No Name" to overthrow the Devil King.

[Source: Crunchyroll]

The shenanigans of our lovable troop continue in this OVA, when a girl on the run lands right in Izayoi’s arms! After the group helps the girl, by defeating her would be assailants, they return with her to the Slave Community she’s from. While there, they meet with Jack-O-Lantern and Ayesha and begin a new Gift Game with several challenges.

[Source: Sentai Filmworks]