The Oath Seems to Be Beyond the Stars?
The Gift Game against Perseus involves invading their fortress and only those who can reach Luios before being detected shall have the right to challenge him. With those rules in mind, Izayoi comes with a plan having Asuka and Yô confronting Luios's guards while he sneaks past them with Jin. The plan works and Izayoi finds Luios in a colosseum, beside Leticia, who is turned into stone. Instead of confronting him, Luios unleashes his trump card, Algol the Gorgon, a former Demon Lord under his control. Algol turns all outside the colosseum including Asuka and Yô into stone and attacks Izayoi, who easily defeats it by destroying its gift with his Unknown ability. Luios admits defeat, but Izayoi only takes him down after raising the stakes of the game to ensure that the Perseus guild is destroyed for good. As the No Names celebrate their victory, another letter from an unknown sender is seen on a table
Aired 09/02/2013EP 5 - The Oath Seems to Be Beyond the Stars?

Problem Children Are Coming From Another World, Aren't They?
Izayoi Sakamaki, Asuka Kudou, and You Kasugabe 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)