A year after Aizen's death the soul society was struggling to do its job, the problem is that some espada not only probably survived, but other old and new enemies and threats are coming back trying to "conquer" the soul society, hell, earth and get back Hueco Mundo, and our favorite substitute shinigami is almost fully"retired". A suspicious person appeared, and even though no one trusted him, he was willing to help he wanted something in exchange. With no past or friends, he's looking for something, but how much is he willing to sacrifice to get it?