With the second Vandenreich invasion ongoing, the captains struggle without their bankais in the fight against an elite Quincy force known as the Stern Ritters.

"The Soul Reapers must guard the four pillars that are protecting Karakura Town from destruction at the hands of Aizen's minions. Standing guard are assistant captains Yumichika, Kira, Hisagi and Ikkaku! But when Ikkaku goes down, will Karakura Town fall with him?!" -- from publisher's web site.