That has Sephiroth turning to face Rufus, the smile on his face disappeared and his grip on Muramasa visibly tightened.

"Do not think I am as naive as my remnants Shinra. I'm quite aware of the fact that you do not carry Jenova and that she's not on this planet."

He gestures with his free hand as he continues, "I know what I must do in order to find her. I have to cleanse this planet of the sickness that has overtaken it."