Until now, Seeley had never experienced such a pleasant feeling when killing another. He didn't know whether this sensation was due to the influence of the Shadow King's power, or if it was part of his nature to begin with. Wielding the longsword that he had once used to protect others, he used it to spill the blood of the innocent. He felt deeply grateful toward the Shadow King.
See Slaughtering Seeley.
Boss in 6th Chapter during Starless and Bible Black Raid Event.