Sasuke Uchiha
is a popular kid who has lots of fan girls but have a mysterious attitude. Sasuke's family has been killed y his own brother, Itachi. He wanted revenge on his brother and seek out for power. Sakura Haruno
is one of Sasuke's fan girl but because of her feelings for Sasuke ,her friendship with Ino(
Sakura's Best Friend who also is Sasuke's fan girl) has turned into rivals. She was lucky enough to be grouped with Sasuke but it didn't turn as well as she thoughts.
During the Chunnin Exams, Sasuke received a cursed mark from one of a high S rank criminal, Orochimaru.
After the Chunnin Exam, Sakura was scared that Sasuke will go seeking for Orochimaru because of his outstanding performance of defeating three sounds ninja using the power of the cursed mark
. Because of that Sakura went to the village's gate and hope Sasuke doesn't left the village like she imagined.
But the time did comes and she did everything she could to stop him. She even said that she'll do anything for him to be happy and she also said that she would help him with his revenge. Sasuke was affected by Sakura's words and all he can do is give her a soft "
Thank you" and knocked her out.
As she reported about Sasuke's betrayal,she asked Naruto, crying(
who was formed in a mission to retrieve Sasuke with Shikamaru Nara, Choji Akimichi, Kiba Inuzuka and Neji Huuga) to bring Sasuke back to the village. Naruto made a promise because of looking at crying and heart broken Sakura and he promise will bring Sasuke back but he failed.
Sakura saw Naruto in bandages and she looked at Naruto when he said about keeping his promise till the end. She was effected by Naruto's words and was determined to bring Sasuke back with Naruto.Promising that she will not be a nuisance next time.Because of that she was determined and trained with one of the Legendary Sanin and the Fifth Hokage, Tsunade.