Yn ln the first pawn of rias till issie joined the group as rias and others ignored him so he secretly asked sirzechs to be free after telling him what has happened as sirzechs freed Yn as Yn starts training his abilities to become strong devil and protect the supernatural and the innocent

Yn abilities

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Yn weapon

Harem
Yasaka
Kuroka
Ravel
Rossweisse
Tsubaki
Sona
Irina