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Chapter 420

As Ichigo prepares to activate the Final Getsuga Tenshō, his inner world battle with the merged Tensa Zangetsu and Hollow Ichigo is revealed. Ichigo becomes Getsuga and reveals that he will lose his Shinigami powers as a result. A stunned Aizen struggles to understand and come to terms with Ichigo's possible superiority. Ichigo then uses Mugetsu.