Unusual Incident in Seireitei?! Gotei 13 Invading Army Arc!

After cleansing and restoring the barriers where Karakura Town was temporarily swapped with Soul Society, Matsumoto and Nanao enter the Precipice World to return home, but are confronted by something along the way. Hitsugaya and Shunsui lose contact with their lieutenants, who have not returned. Meanwhile, Ichigo and Rukia go off to handle Hollows, and Kon goes off to investigate a spiritual disturbance and finds a green-haired girl covered in rags. Hitsugaya and Shunsui report to Yamamoto regarding their lieutenants' disappearances, but Matsumoto and Nanao return at the same time. Both of them do not recall being away that long and just came back directly. The Soul Reapers realize time in the Precipice World is out of sync with Soul Society, with Yamamoto ordering Mayuri Kurotsuchi to conduct a survey of the area with Kenpachi's team as security escort. Ichigo returns home and is furious with Kon, who has brought back the green-haired girl. While the survey in ongoing, Mayuri and Kenpachi's team are confronted by an intense light emerging from the walls of the Precipice World. Rukia is ordered to return to Soul Society along with Ichigo. Ichigo goes with Rukia through the Precipice World but are chased by the Kototsu. To save themselves, Ichigo uses his bankai and carries Rukia all the way to Soul Society but due to the gradual loss of his powers, he falls to the ground. Ichigo encounters Hitsugaya and then Byakuya, who places Ichigo under confinement. Somewhere in Soul Society, a man walks through a lab filled with piles of gigai and addresses what seems to be Izuru Kira and Nanao Ise.