User blog comment:Xilinoc/Ch. 644 - BABY, HOLD YOUR HAND 7 (Never Ending My Dream)/@comment-5303512-20150924113750/@comment-5303512-20150924140059

Well anyway, Rangiku's back! Now my life is a little bit better!

Well all we know is that Kensei and Rose are with Mayuri so I wouldn't doubt he is in one of those capsules as well. I mean this is Mayuri we are talking about, he is the most Convenient character there is.