Renji Abarai

Renji Abarai is the lieutenant of the Sixth Squad under Captain Byakuya Kuchiki and one of Ichigo Kurosaki's closest friends, and rivals, as well as the main tritagonist of the Bleach franchise. He was also the former Sixth Seat of the Eleventh Squad under Captain Kenpachi Zaraki before being premoted to Byakuya's squad as his lieutenant.