The story is set in December of 2199, when the streets are full of anticipation for the end of the year and the start of the new one. Amid the celebrations, word spreads that Ragna the Bloodedge, an SS-class rebel with the highest ever bounty on his head, has appeared in the 13th Hierarchical City of Kagutsuchi. The apparent aim of Ragna or the Grim Reaper is the destruction of the system controlling the world. To collect the bounty, a motley array of unrivaled fighters converge on Kagutsuchi. (Source: ANN)

After a brutal surprise attack by the forces of Quincy King Yhwach, the resident Reapers of the Soul Society lick their wounds and mourn their losses. Many of the surviving Soul Reaper captains train to battle without their Bankai, the ultimate technique wielded by the fiercest warriors. In the previous assault, Ichigo Kurosaki narrowly managed to help fend off Yhwach's fearsome wrath. However, to ultimately defeat his godly adversary and save his allies, Ichigo must now undergo severe training that will push him beyond his physical, emotional, and mental limits. Though Yhwach already holds the upper hand in this ongoing blood feud, he also successfully recruits Uryuu Ishida, Ichigo's close friend and rival, to be his successor. Yhwach strikes out once again at the weakened Soul Society, intent on finally obliterating his long-standing enemies. As Ichigo struggles to attain new power, the Soul Reaper captains fight for survival and borrowed time.

Having escaped the many horrors of her village, Saya Kisaragi vows to hunt down the monster responsible and make him pay with his life. As she tears through flesh and bone for her vendetta, she encounters SIRRUT, a group of ingenious hackers, who enlist Saya to help them defeat a common enemy—someone she knows all too well. Unfortunately, the path she follows is paved with tragedy, as once again, Saya faces betrayal at the hands of those she has come to trust. With her back against the wall, the fearsome monster slayer must fight with all her strength and skill if she is to overcome this final mission and exact vengeance.

When a soul has committed irredeemable sins, it is removed from the cycle of reincarnation monitored by the Soul Society, and the gates of Hell open to condemn the soul to eternal damnation. From this place from where no one has ever come back, three tormented souls who refer to themselves as Sinners of Hell burst in Karakura Town, where a ruthless fight involving them against the substitute Soul Reaper Ichigo Kurosaki and his friends ensues. In the aftermath of the fight, Ichigo's sisters are abducted, with the aforementioned group's leader Shuren hoping to lure Ichigo to be finally freed from the chains of Hell. Helped by a Sinner named Kokutou, Ichigo and his friends head to Hell for a rescue mission. However, the Soul Society opposes the journey, in fear of threatening the balance between worlds. As the lines between friends and foes get blurred, Ichigo will have to face his most challenging dilemma yet—a decision that may well engulf the three worlds into chaos.