Shuu, the prince of the human kingdom, is afflicted with an incurable disease and banished beyond the massive castle walls to the land of monsters. In his despair, he is rescued by the beautiful monster princess, Misaki. Shuu finds himself increasingly captivated by her and the fascinating, different culture of the monsters. (Source: Fantasia Bunko, translated)

Novel adaptation of K, tells the story of how the current red clan was created, the background story of Kushina Anna, and details of Kamamoto Rikio, Yata Misaki and Fushimi Saruhiko joining the red clan and their time together as a clan.

The story of how a Japanese storyteller, or "Hanashika," saved the world using Rakugo.

A small group of adults have been invited to a reunion at their old highschool to remember the loss of their classmate Kiriko, after receiving a letter "From K." Not knowing who "K" is, Ryosuke, a young man with short black hair that used to know Kiriko, has to uncover the truth of Kiriko's mysterious death. As he slowly regains his memories as his fellow classmates start suddenly dying around him in the most horrific manner, he realises that it's far too late to say sorry.

The story of how a Japanese storyteller, or "Hanashika," saved the world using Rakugo.

Marriage Royale's story revolves around the male protagonist, a high school student named Tsukasa Hinomoto, who is told one day by his parents that he was adopted. Furthermore, they tell him that his real father is a manager of a large company, meaning he is very rich and holds a lot of power. Tsukasa's real father wants his son to marry a good woman, so he sets up an event known as Marriage Royale where beautiful girls from all over Japan will come together at a school built especially for the event and vie to become Tsukasa's fiancée. The school is located on an isolated island near Japan, and Tsukasa himself is taken there to live in a mansion in the care of two twin maids: Miku, the elder sister, and Miu, the younger sister. (Source: Wikipedia)

It's tough being a ghost in the modern era. A group known as "The Seven Wonders" are distressed by the lack of children taking tests of courage to the school that they haunt. Without children who believe in them and perpetuate ghost stories, they will eventually cease to exist! Can they figure out how to instill fear in children, or is the modern world already scary enough?

Remake of the original manga. Set two years after the end of Cat's Eye, the story focuses on Ai, the youngest of the three sisters.

In the *K* novel series: V.1 - *Side: Blue* - Focuses on the history of the blue clan and the events which led to Munakata Reisi's appointment as the current blue king. (Takes place before the anime, but after the events of K Side: Red) V.2 - *Side: Red* - HOMRA in its early days and Anna's initiation to the clan. V.3 - *Side: Black & White* - The silver clan between episodes 7 and 8 of season 1, focusing on flashbacks to Kurou, Neko, and Shiro/Weissman’s past. V.4 - *R: B* - Suou Mikoto, leader of HOMRA, was strengthening his clan in Shizume Town. Munakata Reisi, the Blue King just enthroned, immediately reorganizes Scepter 4 and re-establishes order. When these two polar opposites meet, conflict is inevitable! V.5 - *Side: Green* - Features Gojou Sukuna as the main character, and follows his rise through the ranks of JUNGLE.