Karin

Karin has crimson eyes, fair skin, and the characteristic red hair of the Uzumaki clan which she wears in an unusual hairstyle: her hair is short and spiky on the right side, while longer and straight on the left side. She wears brown narrow glasses, which have a serrated blade hidden in them, and her outfit consists of a lavender uniform that exposes her navel, short black shorts, and long black thigh high stockings with black sandals. Her chest, neck and arms are covered with bite marks that result from people biting her to heal, and all of which are hidden by her uniform. As she is allied with Hebi, Karin begins to wear a pouch around her midsection, and later a black cloak. When allied with Akatsuki, Karin wears an Akatsuki cloak with a hood instead of a high collar. After the fight with Killer B, Karin briefly put her hair in a ponytail. She is seen wearing a black dress and black-rimmed glasses when it's decided that Taka will go to Konoha. Years after the Fourth Great Shinobi War, Karin began wearing a long sleeved white shirt with a purple tie and black cuffs on her wrists, black boots, and black shorts, and has also buzzed the left side of her head. Her body also apparently healed from all her bite marks. When Karin was still living in Kusagakure, she wore a mesh shirt and stockings, a purple skirt, a light brown short sleeved jacket with an orange stripe going across the chest, and black sandals. She also had the Kusagakure forehead protector on her forehead. As a child, Karin had short hair that reached her chin and wore a dark purple short sleeved shirt that had a brown collar, light brown pants, and brown sandals.

In the anime, Karin and her mother were allowed to take refuge in Kusagakure, on the condition that her mother healed the village's wounded under watch by Zōsui. After the village suffered many casualties following a surprise attack, her mother upheld her duties and healed the wounded at the Kusagakure hospital, where she died after transferring too much chakra to the wounded. Immediately afterwards, the duty was passed onto Karin, much to her disapproval. Some time after becoming a genin, Karin took part in the Chūnin Exams held in Konoha on a team. During the second phase, Karin lost track of her teammates and was attacked by a large bear. She was saved by Sasuke Uchiha, who was disappointed to find she had an earth scroll as well, but she was able to catch a good glimpse of him, as he smiled at her. Her team later failed as they didn't make it to the tower with both scrolls by the fifth day. Soon after during a war, Karin sensed a huge group of people approaching the village she was staying in and hid while they attacked. After the village was burned down and everyone was killed, she was harassed by two men in another town who, noticed her Uzumaki lineage, thought to capture her and sell her to the underground market, but she was saved by Orochimaru, who, noticing this, offered her protection, which she accepted. Later, Orochimaru asked her how she survived her village being burned, to which she replied that she could tell how many large groups of people were approaching her. Orochimaru lead him to bring her back to Otogakure. During her time with Orochimaru, Karin's healing abilities were studied by Orochimaru and Kabuto, with the latter successfully being able to replicate it. After being involved in experiments with Jūgo and Kimimaro, Orochimaru made her in charge of the Southern Hideout. In the anime, when Karin saw Sasuke for the first time since joining Orochimaru, she realise he was the boy that rescued her during the Chūnin Exams. When the two formally met, Karin assisted Sasuke with recapturing one hundred and eighteen test subjects from one of Orochimaru's hideout, which they succeeded in doing. Sometime later, she was sent to the Eastern Hideout to deliver a vial to help further research on Suigetsu. Soon after Sasuke completed his task, Suigetsu escaped his chamber, leading to Karin taking action to hunt him down and joined Sasuke in an effort to recapture him. When they found Suigetsu, she attempted to persuade him into coming back to the hideout, which led to him attacking her, and she repelled him with her chakra chain. After knocking him out, they brought him back to the hideout and parted ways.