My theory, came about as I read the last page. It immediately sprung to my head. Sasuke is trying to achieve Rinnegan. Madara wrote on that Uchiha Tablet that Rinnegan can be brought forth with the combination of Uchiha and Senju DNA.
So, Sasuke needed Orochimaru since Orochimaru knows where the Senju DNA is. He knows because it was shown that he worked with it (eg. Danzo).
So that is the reason Sasuke asked "Is it here?" He was referring to the DNA, and it is just irony that the Senju DNA is found at the Uchiha hide-out.
Also, Madara brought forth "Purfect Susanoo" which was an overshadow for Sasuke's future powers/strength. The Susanoo was achieved through the Rinnegan. Hence why I say Sasuke is planning to get the Senju DNA.
So, Sasuke needed Orochimaru since Orochimaru knows where the Senju DNA is. He knows because it was shown that he worked with it (eg. Danzo).
So that is the reason Sasuke asked "Is it here?" He was referring to the DNA, and it is just irony that the Senju DNA is found at the Uchiha hide-out.
Also, Madara brought forth "Purfect Susanoo" which was an overshadow for Sasuke's future powers/strength. The Susanoo was achieved through the Rinnegan. Hence why I say Sasuke is planning to get the Senju DNA.
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