It was unfortunate but understandable why the two ninja from the Mist Village wouldn't want to ally themselves with Sasuke. Along with the difficulties Itachi was bound to present, this would be even more troublesome. But Sai smiled. In such times you had to do with what you could.

"I have no problem with that, Haku-san, as long as it's mutually beneficial. But you realize that should I have to choose between helping you and helping Sasuke-kun we may find ourselves at odds again."