After Grimmjow's defeat, the Espada think he's dead. But is he? Injured but still very much alive, Grimmjow leaves Las Noches for good and goes into hiding. He gathers a small group of followers, which will be known as Hizoku, and contemplates his next move. His motives are unknown.

Sairento spent weeks wandering around the forest of menos, looking for some place to go. He found a part of the forest that was very dense, and once he pushed through he found a clearing. It was here that he built the famed Kurosu Base! Using only his barehands he made this, and with the hope that some day he could gather his own army to take down the leader of the espada. Will you join him? Or fight against him?"