Complex sentence: Naruto quickly rushes to her aid when a member of the Anbu stops him and takes the girl away with the medical ninjas, leaving Naruto with only the information that he is to return to the village and ignore what he saw.
Split into simpler sentences: Naruto quickly rushes to her aid when a member of the Anbu stops him and takes the girl away with the medical ninjas. Leaving Naruto with only the information that he is to return to the village and ignore what he saw.