Shiki Tohno, an ordinary high school student starts another day of school. At school he learns of a recent murder with the victim having what seems to be vampire marks on their neck. He also has a strange encounter with a girl named Ciel, whom seems to be his friend but he has no memory of her. On his way home from school he has a strange day dream of killing a girl he sees. He then wakes up in his sister's mansion, where he was moving to that day. He meets the two maids and they tell him he can't go out past 7 pm. Bored, he sneaks out to go get some magazines. On his way back he finds a man collapsed with teeth marks on his neck, he also sees a girl with a sword who looks like Ciel. Confused, he passes out. He awakes the next morning in his room again. He goes to read the newspaper but finds nothing on the incident, leading him to believe it was a dream. His sister also discovers about how he snuck out. On his way to school he runs into the mysterious girl that he had the dream of kil

The woman introduces herself as Arcueid, and tells Shiki that he killed her. Confused and scared, he runs off. When he gets to school he realizes he has finally lost her. At lunch he asks Ciel if that was her last night with the sword... Offended, she says no. After school Shiki walks home with his female friend Satsuki, she reminds him how he once helped her out in middle school and that he will always be there for her when she needs him. Its her birthday and she goes off to have dinner at a fancy hotel with her parents. Shiki gets to the mansion and finds Arcueid waiting for him at the gate. Scared again, he runs off. She corners him in an alley. She reveals to him she is a vampire princess. Just then they are attacked by black wolves. She defeats them and takes him back to her hotel. She reveals to him how she came back to life and is weakened now thanks to him. Just then a mysterious man enters the hotel and unleashes several of the black wolves. Arcueid and Shiki go to escape but

Shiki comes crawling home after his battle with Nero. When he awakes in the morning his sister is extremely angered with him for dissapearing and not telling her he would be gone. But due to what he did he can't reveal where he was. He goes to school and gets confronted by Ciel and his friends. He assures them that everything is ok, but Ciel seems oddly concerned with the whole story. That night, Akiha throws a ""coming home"" party for Shiki and they share a special dinner. Later the two maids, Kohaku and Hisui tell Shiki how Akiha was very worried over him and she loves him dearly. Feeling bad he goes over to talk to her. They take a trip down memory lane on when they were kids and how they'd play. Shiki remembers a young boy playing with them but Akiha has no recolection of it. That night when Shiki goes to bed he has a dream that Arcueid crawls through his window to bite his neck. The next morning after he arrives at school he comes to find by looking out the window, Arcueid is on th

The news reports that last night, a girl named Andou Tomomi was found dead. She had left her friends around 7PM to ride the ferris wheel.

Shiki is worried about Akiha, who has been acting strange since last night. He asks if it was something Ciel said. She gets up angrily but then faints. Shiki wants to call a doctor, but the maids remind him that Akiha hates doctors and assure him that she will recover with rest. Shiki is still concerned. Why would she get sick so suddenly? Kohaku explains that this often happens whenever Akiha suffers mental anguish. Shiki realizes that he is the cause and decides to stay with her tonight...

After reading the farewell note Arcueid left for him, Shiki immediately heads out to look for her; however Ciel tries to stop him. Knowing that absolutely nothing is going to stop him from looking for Arcueid, Ciel decides to help him look for Arcueid who happens to be fighting Roa at the school.