Proper Japanese Title: 血界戦線 Back 2 Back
Originally serialized in Jump SQ.Crown, later moved to Jump SQ. Rise once the former ceased publication.
Sequel to Kekkai Sensen.
Followed by Kekkai Sensen: Beat 3 Peat.
— Description from Comic Vine community (comicvine.gamespot.com · https://comicvine.gamespot.com/kekkai-sensen-back-2-back/4050-87649/).
