Masayuki Oshita

It’s 1923, and the mysterious blood source Ascra has unleashed a horde of vampires across Japan. In response, the government spawns Code Zero. With S-rank vampire Defrott and the rookie Kurusu, this kill squad is made for one reason: to hunt the undead!

In feudal Japan, half-demon twins Towa and Setsuna are separated from each other during a forest fire. While desperately searching for her younger sister, Towa wanders into a mysterious tunnel that sends her into present-day Japan, where she is found and raised by Kagome Higurashi’s brother, Sota, and his family. Ten years later, the tunnel that connects the two eras has reopened, allowing Towa to be reunited with Setsuna, who is now a demon slayer working for Kohaku. But to Towa’s shock, Setsuna appears to have lost all memories of her older sister

Unique monsters that suddenly began to appear all over the world from the beginning of the 20th century. At first, human beings tried to resist, but in the face of their enormous power, they came to the conclusion that complete extermination was impossible, and concentrated their wisdom on monitoring and analyzing monsters. The United Nations Kaiju Observatory (commonly known as Coulons) was born. Leading by the indomitable leader Yuichiro Kaido, the authority of monster ecology, Toji Kobayashi, the talent of monster function analysis, Claire Coleman, the maverick of monster disaster prevention, Kenny Mikoshiba, and the nobleman of monster strategy, Nikita Tarkovsky. A new generation Lulu de Picard who paved the way for monster linguistics, and Guillermo Marquez, a monster life science tycoon. Experts in monster science monitored and analyzed hundreds of monsters, and continued to explore a world where monsters and humankind live together.

A detective who's also a public security agent and a member of a shadowy organization juggles his triple identities.

In this world, creatures like vampires and werewolves still walk about, but Aya Rindo can’t say the same for herself. This beautiful disembodied head, carried by her maid Shizuku Hasei, is a detective in search of her stolen body. One evening, they meet half-human Oni Slayer Tsugaru Shunichi, who offers a lending hand. Now, the trio is traveling through Europe, solving mysteries along the way.