Nate here. Back then, Sekirei fans were wondering if there was going to be a second season since they ever-so deliberately hinting of. The first season show left a cliffhanger, hinting of a second season of Sekirei. Well after some time had passed, the wish was commanded, and fans got the second season of Sekirei.
In case you're still new to Sekirei, a "Sekirei" is basically like a master/servant-type deal. As a semi-spoiler to explain my point, everyone here except the guy in the middle are "Sekirei," and the master, also known as an "Ashikabi," basically maintains them as well has the ability to increase their Sekirei's power depend on how powerful their bond is with their Sekirei. The Ashikabi in the middle here is named Sahashi, Minato, and those are most of his Sekirei (except for the one directly above him.)
This whole entire anime is pretty much a huge fanservice show, considering how huge most of the Sekirei's boobs are. Ask me if I wanted to watch the show because of them, of course, most will..but if you are a girl watching Sekirei season 2, you might be in for a shock, because there is a semi-yaoi scene somewhere in the show, which really gives in the the genre of "fanservice." Even though it's directed as eye-candy, it has a somewhat decent story behind it too (if you're still paying attention that is...)
Usually I would give a rating I will now. 4.8 out of 5 because it's wide-eyed fanservice, but my newest blog usually just gives reviews where I suggest you should watch it, maybe watch it, or ditch it. If you wanna check it out, go here. https://mentaldagger.wordpress.com