Angelica

"'Without death, all we have are random events, accumulation, you can’t call that life! If you have a reason for living, then you have to kill me ' ~ Angelica asking Rōgu Kerī to kill her since she is dying, slowly and painfully." Angelica was a familiar of Rōgu before they feel in love. After falling in love the Familiar King banished Angelica from the Familiar Spirit World and died after living too long in Earthland.