Personality
Anko is easygoing, tomboyish, and sometimes hyperactive, making her very similar to Naruto in many ways. Despite portraying several Naruto-like habits, she has shown to be very intelligent and studious. However, she is also shown to have a bloodthirsty (in a literal sense) side, as shown when she scratched Naruto's face, and licked away his blood. This probably comes from her time with Orochimaru. She regularly makes sure to have at least basic knowledge of the landscape for which her next mission will take place. According to the official databook, Anko's favorite foods are sweet bean soup and dango (dumplings). Mitarashi and Anko are ingredients of dango. Her least favorite type of food is spicy-tasting food. Her hobby is tea ceremonies, and her favorite phrase is "Arriving!" Anko has also picked up a few behavioral habits from Orochimaru, such as using her tongue to lick her kunai or lips before fighting.
edit Part I
[edit] Chunin Exams
Young Orochimaru and Anko
Anko was the proctor for the second exam, which she announced during Ibiki Morino's speech, after she made a rather loud entrance into his class, annoying him since she was early. During the second exam, Izumo Kamizuki, Kotetsu Hagane, and Mozuku notified her of three dead Grass ninja. Anko saw that all of their faces had been stolen, and, after she recognized the face-stealing technique, she demanded the Grass ninjas' IDs. After seeing the IDs, Anko realized that the Grass ninja called Shiore, who she met earlier, was Orochimaru in disguise. Later, she arrived at a confrontation with Orochimaru, and it was revealed that he used to be her sensei.
Anko, along with nine others, were branded with Orochimaru's first ten Cursed Seals of Heaven. Of the ten, Anko was the only one to survive, establishing the one-in-ten chance of surviving the Cursed Seal. Orochimaru supposedly rejected Anko as a subordinate, believing she did not have the lust for power or vengeance needed to fuel the Cursed Seal. Orochimaru lost interest in her, though he believed there was some value in letting her live. Orochimaru was able to reawaken her Cursed Seal during their battle in the Forest of Death, thus incapacitating her with the pain and ending their fight. She later talked over her encounter with the Third Hokage, but he reassured her, telling her it wasn't her fault that Orochimaru got away.