Welcome to the N-H-K

Young Tatsumi travels to the capital of the Empire in order to earn money for his starving people and encounters a world of unimaginable depravity, dominated by the ruthless Prime Minister who controls the child Emperor. Tatsumi is recruited by Night Raid, a group of assassins dedicated to eliminating corruption by mercilessly killing officials and privileged nobles.

Asahi Kuromine is a high school student who supposedly cannot keep a secret. One day he spots his crush Yoko Shiragami, unfurling a large pair of wings from her back. She explains to him that she is a vampire and is only able to attend a normal school on the condition that no one discover her true identity. Asahi swears to keep her secret but finds it hard to maintain seeing as how Yoko herself is an airhead and Asahi's friend Mikan keeps bullying the two of them.

The story is set in modern day Japan following the growth of the protagonist Taiga Akashi, an elementary school kid who wants to be a professional gamer someday.

When a certain man is released from prison, he knows exactly where he's heading first. After falling in love with a traditional comic storyteller's rendition of the story called "Shinigami," he is determined to become his apprentice. The performer, Yakumo, has never taken an apprentice before, but to everyone's surprise, he accepts the eager ex-prisoner, nicknaming him "Yotaro." As Yotaro happily begins his new life, he meets others in Yakumo's life, including Yakumo's ward Konatsu. Konatsu was the daughter of a famous storyteller, and Yakumo took her in after her father's tragic death. Konatsu loved her father's storytelling, and would love to become a performer in her own right—but that path is not available for women.

Ryousuke Kaga, a helplessly romantic teenager, was walking in the rain when he sees a beautiful girl with red eyes drenched in the rain. Everyone was avoiding her, but Ryousuke was taught to treasure women so he offered his help by letting her dry off at his home. Ryousuke can’t imagine that this mysterious girl would stab him in the chest and leave him to die… Or did she? Who is this pretty girl and what does she want with him?

On Christmas Eve, Hiro Hirono meets a girl named Miyako Miyamura as she chases a purse snatcher. Hiro later finds out that Miyako also goes to the same school as he does and they start hanging out together. This makes Hiro's childhood friend, Kei Shindō, feel left out, so she tries to compete with Miyako for Hiro's affection, creating a love triangle. Meanwhile, Renji Asō meets a girl named Chihiro Shindō at an abandoned train station. He soon learns that Chihiro suffers from a type of amnesia where her memory lasts for only 13 hours. He also discovers Chihiro's dream of writing a novel, but she has never been able to fulfill that dream due to her condition. Renji then decides to help her fulfill that dream.

Mina Tepeş, the Princess of the ancient covenant and ruler of all vampires, wants her race to stop hiding from the humans. Using her vast wealth, she has paid off Japan's entire national debt and by doing so, gained the right to create a district off Japan's coast that is to become the future haven to vampires worldwide. But when she finally attempts to make public the existence of vampires to the world some politicians, terrorists and rival factions are plotting to assassinate Mina before she has a chance to get Japan's and international recognition for the Vampire Bund. Now she must rely on her strength, cruelty and those closest to her, while trying to make a normal life.

In order to uncover the "end of the sky," as spoken of in ancient mythology, Kal-el Albus is sent to Isla, an island in the sky. There he attends Cadoques High's Aerial Division, where he enjoys a carefree life with his schoolmates. That is...until a surprise attack by the air tribe drags Isla into a bloody war.

The story takes place in a fantasy world consisting of humans, Dragonoids and Monsters. There is a relative harmony between the three races. There are also Drops, spherical objects that come out of the planet, which can power up the Monsters. Humans and Dragonoids can take on the role of Dragon Callers if they have the capability to see the Drops, wherein, they form bonds with monsters. Currently, the planet is facing Drop Impacts, occurrences where a large amount of Drops are suddenly generated in a single area (and can also spread), which affects the lands and makes the Monsters berserk. In fact, one of the main duties of Dragon Callers is to settle the Drop Impacts by stabilizing the Drop distribution.

Unidentified creatures "Archon" suddenly appear and bring the human beings to a crisis of extinction. A special corps "Goulart Knights" is formed to counter attack Archon. The knights have supernatural power to generate "Holy Grail" from their spirits and battle against Archon.

Sequel of Goulart Knights: Evoked the Beginning Black.