Karin is caught within the Infinite Tsukuyomi and dreams of her past. She was born into the Uzumaki Clan and has the unique ability to heal anyone who bites into her. Driven out of her village, the Hidden Grass takes her in, only to use her for this ability. Karin has no choice but to endure constant suffering in order to survive. She is later chosen to enter the Chunin Exams, where Sasuke saves her life. Karin has never forgotten what he did for her—or his smile

Naruto: Shippuden is the continuation of the original animated TV series Naruto.The story revolves around an older and slightly more matured Uzumaki Naruto and his quest to save his friend Uchiha Sasuke from the grips of the snake-like Shinobi, Orochimaru. After 2 and a half years Naruto finally returns to his village of Konoha, and sets about putting his ambitions to work, though it will not be easy, as he has amassed a few (more dangerous) enemies, in the likes of the shinobi organization; Akatsuki.