Cameraman Morioka Kouhei is researching Schwarz Quelle Castle. When he steps inside the castle's great walls, he discovers a mysterious little girl, Hazuki, who's been trapped there for years. Utilizing her controlling charm, Hazuki tries to get Kouhei set her free. But this sweet little girl isn't everything she appears to be... Filled with cute cat girls, vampires and psychic mediums, Tsukuyomi: Moon Phase is the manga that launched the popular anime

Kouhei Midou
Despite his entire family being famous exorcists and mediums, Kouhei has zero spiritual powers. His mother mysteriously disappeared when he was 13, and he now lives with his grandfather who owns an antique shop. He is immune to vampires controlling him even after they bite him, and he is considered to be an "Ama vampire."

Hazuki
A mysterious girl whom Kouhei met in the German castle. A vampire. She returned to Japan to search for her mother. She considers Kouhei her "slave" because he was her first bite. 11 or 12 years old. She likes to wear cat ears.

Seiji Midou
Kouhei's cousin and son of the main house of Midou. He is a famous exorcist, and he has very powerful spiritual powers.

Heidi
A cat Hazuki and Kouhei picked up when they first looked for Hazuki's mother near the lake. Named "heidi" because "hai" is "ash" in Japanese, since the cat is grey.

Hiromi Anzai
Kouhei's friend since high school. Works at a publishing firm.

"Grandpa" Ryouhei Midou
Owner of an antique store and Kouhei's grandfather. He used to be an active exorcist, but retired and runs the antique store. He is constantly seeking for clues and reasons why his daughter (Kouhei's mother) disappeared, and believes that the keyword "vampire" is the biggest clue.

Ellefreise
A vampire woman. Her special power is summoning monsters. She is under the control of Count Kinkle, and attempts to retrieve Hazuki back to the German castle. However, after sucking Kouhei's blood, she was freed of Kinkle's control.

Count Kinkle
A powerful vampire. His special power is manipulating light and turning into any form he wishes. A day walker.

Moon Phase -- Author Arima Keitaro Bio

Name: Arima Keitaro
Blood Type: O (RH+)
Birthday: ???
Appearance: Big, "soft macho"

Hobbies:

• Bicycle: MTB
• Music: Techno dance music, jam & spoon, DANCE 2 TRANCE, etc.
• Traveling: All around the world. (I have lots of funny stories)
• Food: Sweets, Western food, Japanese food...anything

Works:

• He is currently working on Tsukiyomi~Moon Phase, and the series has become an anime series.
• He has been a contributor for the Evangelion anthologies
• He has countless work in literary coterie magazines.

[Cat]
Name: Ramune
Sex: Male
Age: About 5 years old.
Birthday: 1998/12/05
Appearance: Skinny, cute
Personality: Funny, but cute

Specialty:

• Destroying things with its tail.
• Becomes nonresistant when hugged
• Answers with a weird voice
• Falls from the desk
• Claims its territory
• But still cute