

When she returns from the exams, Zōsui informs her about his disappointment, telling her to go to the "North Fortress", where his allies are fighting the Kaguya Clan. Karin gets attacked by a large bear, but is saved by Sasuke. In the Forest of Death, the two genin replenish themselves by biting her, then give her the scroll for safe keeping. Eventually, Zōsui informs the kunoichi about her being given the chance to enter the Chūnin Exams, with her task being to keep her team-mates replenished. A while later, Zōsui takes her to the battlefield, where she is to treat the wounded, after which she collapses from exhaustion. Later, when she leaves the hospital, Zōsui warns the kunoichi to come back, even if nobody comes to pick her up, after which, Karin returns home, where she starts sobbing, recollecting her bite marks. Karin begs her oppressors to stop, as an injured man bites her in the hand, but to no avail. Zōsui delivers Karin to the medical team, telling her that she must earn her stay in the village. While in there, the kunoichi learns that her mother has passed away and becomes horrified of the bite marks on her body. As Karin waits the entire night for her mother to return, Zōsui comes to pick her up, dragging her to the hospital where her abilities will be used to treat the wounded. Several years ago, in Kusagakure, Karin's mother is being taken away by Zōsui to help with the injured, despite the woman's health condition. Inside her dream, Sasuke calls out for the kunoichi to wake up, but her only response is a request for him to smile. Karin gets caught in the Infinite Tsukuyomi. " To See That Smile, Just One More Time" ( あの笑顔をもう一度, Ano Egao o Mōichido) is episode 431 of the Naruto: Shippūden anime.
