Kensei walked through a Garganta with many thoughts on his mind. Ever since Ichigo killed aizen Kensei was trying to get back to Hueco Mundo, but there was always someone around. He finally managed to get a garganta open and without anyone knowing. He glanced around, noting not much changed.
He walked to the tower where the espada meeting room, along with aizen's throne room was. He was taking over espada now, not as cero, but as complete ruler. This was the final stage and he was taking control from now on.