This arc has really a lot of plot holes. If there's someone like this in the Bleach world, why did it just show itself now? Karakura was in the point of destruction by Aizen, and now this arc came from nowhere...
And tbh, this arc story is just so lame. Not enjoying it a bit, everything is just, "AH OK! SO THAT'S IT?!"
Will there be a time that I'll be impressed and think "OH REALLY? SO THAT'S WHY IT'S ETC ETC... THAT'S COOL!"
Please end this arc now... Or atleast, let's get back to Urahara and Isshin.