Repel the Rejects is a request in Tokyo Mirage Sessions #FE Encore for the Nintendo Switch. It unlocks during Chapter 2 and can be started in Illusory 106.
Repel the Rejects - Tokyo Mirage Sessions #FE Encore
Repel the Rejects Guide
Talk to the Mirage standing on Illusory 106 Floor 5. It will request a Myrmidon Force, Cavalier Force and a Barbarian Force. You can find Cavaliers and Barbarians on Floor 5-7. You can find Myrmidons on Floor 1-3. Once you have the forces return to the mirage on Floor 5 of Illusory Shibuya to finish the request and receive a Treasure Key.