Koyomi Araragi is a third year high school student who survived a vampire attack during spring break and barely regained his human life in the time that followed as a boy with remnants of vampiric traits. He can see in the dark, his eyes turn red when he gets angry, and he heals incredibly fast. As a result, he questions his lifespan. He remains scared of morning sunlight despite the fact that it no longer has any negative effects on him. Koyomi is a laid-back person whose only real friend at school is Tsubasa Hanekawa. He's a poor student, close to failing every class except math. It is revealed through conversations that he's quite knowledgeable with anime; a fact even noted by Nadeko Sengoku once. Although he is shown to be attracted to the other girls, he turns their advances down due to his loyalty to Hitagi. Other characters seems to speculate that Koyomi is a lolicon, particularly Mayoi and Hitagi, with Hitagi thinking that Nadeko is a "threat" to her. He is very noble, which is why Hitagi is attracted to him. He is willing to help others at the cost of his own life. As such, the female characters he has helped are quite attached to him. He feels most comfortable talking to Mayoi, Shinobu and, from the Second Season on, to Yotsugi about his problems. Koyomi is the only person who thinks that his family relationship is bad, with Karen and Tsukihi thinking otherwise. His parents were revealed to be police officers. His personality is portrayed more clearly in the novels, where his inner thoughts show him to be much more perverted and intelligent than the anime leads one to believe. Due to events prior to Kizumonogatari and Bakemonogatari, Koyomi avoided having friends and seemed to have lost faith and trust in people and himself. (Source: Bakemonogatari Wikia, edited)

Nakiri Alice is a highly skilled chef that is currently attending Tootsuki Culinary Academy as a member of the Nakiri family. Ever since her cousin Erina told Alice her cooking was terrible when they were children, Alice's goal has been to become a top class chef and surpass Erina and her God Tongue. Before moving back to Japan to attend Tootsuki, she lived in Denmark with her family and began her focus on molecular gastronomy. As a result, her cooking is based on combining modern tools with the most advanced theories in order to deliver the best dishes she possibly can. Alice has short silver hair with a left bang that is longer than the rest of her hair. She has fair skin and red eyes and tends to wear the beige Tootsuki vest uniform instead of the standard school uniform, and her cooking uniform is a short-sleeved chef's uniform with red accents on her cuffs and collar. Alice has a very demanding personality that seems to emphasize her Nakiri upbringing. She's bossy and pushy, and will do what it takes to get her way, utilizing not only her personality but also her incredibly advanced cunning and wit. As a result, she absolutely hates to lose; an example here is the fact that—not wanting to be outdone by Erina— once she saw that Erina had an aid called Hisako Arato, she in turn forcefully made Kurokiba Ryo join her as an aid. When not competing, though, Alice is extremely friendly and talkative. She loves to prod and make fun of people during conversations, but will pout to no end when she wants or needs something or thinks something has happened to make her look worse.