Hearing Sasori's words, Su Xiao paused only momentarily before continuing forward.
When the three had just arrived in the desert, both Su Xiao and Deidara sensed something was off about Sasori. This 'sense of discord' intensified when Sasori saw Chiyo.
Su Xiao is sure that Sasori will die in this cave, although Chiyo and Sakura are far from being Sasori's match.
To be precise, Sasori has long been 'dead'; his current existence is merely a matter of consciousness surviving.
During the days spent with Sasori, Su Xiao noticed that Sasori didn't need sleep, water, or food but occasionally replenished a special liquid in his 'core.'
Sasori has no sense of pain, no senses, and has even lost some emotions. To him, the body is merely a puppet he can create at will.
Su Xiao walks slowly towards the cave entrance. He chooses not to stay and help Sasori fight, even though they are teammates.
