Your Soul, My Love, Our Song

Lucy's soul has grown dim, and once a soul is out of it's light, that person is dead. Lucy goes on a job, where she gains five new keys, Dragon Spirit Keys - it's shocking because these Dragons are the ones that were "dead". Bickslow mentions to his team about Lucy's soul dying and now Laxus wants her to join his team where she can grow stronger along with these new spirits.