What is the difference between the human world and the nightmare world, in which the supernatural becomes real and reality the echo of a far away dream? Only Kuki, the weird roaming doctor, who can treat the most mysterious illnesses, could answer that question, but he is focused on his research, investigating on the disappearance of the turtle nation and on the coming of the tide that will soon submerge Japan. So it begins his trip discovering the tales from the Far East.

Rock's manga debut as a young boy detective with shiny dark hair named after Japanese pronunciation of Sherlock Holmes.

An alternative story from the Love Nikki-Dress Up Queen! game. *Note: the English publication introduces the each individual chapter as volumes and not chapters, but the official Japanese release consists of 3 volumes.*

Kaiji and Kazuya face off against each other in a high-stakes game of "One Poker," a modified version of standard poker. Kazuya sets forth a gamble of 2,000,000,000 yen! How will Kaiji survive?! *Chapter count for this arc is 101-254 in the original tankoubon.*

Itou Kaiji, now free of debt but without a penny is leeching himself in Mr.Sakazaki's new house, despite all the flirtings (extreme torment for Kaiji) from Sakazaki's daughter, Mikoko. Sakazaki attempts to kick Kaiji out, even by offering a farewell 'we never knew each other' money of 3000000 yen. While Kaiji ponders himself on the decision, he is visited by Miyoshi and Maeda, two of his 'allies' he had saved from the last part of the series.

A direct sequel to Tobaku Datenroku Kaiji, picking up immediately after Part 3 ends. After his tremendous victory in 2-Player Mahjong against the villainous President, Muraoka Takashi, Kaiji is being driven home by Kazuya, the son of Chairman Hyoudou. However, in the car, Kazuya asks Kaiji if he would be interested in one more gamble that night, and Kaiji accepts. What surprises lie in store for our dear Kaiji, and what will the gamble be?!

Shinagawa Daichi is a high school delinquent who just wants to be left alone. However, class rep Adachi Hana will stop at nothing to get him to go on the upcoming Social Studies field trip. What are her true motives behind getting a "yankee" like Shinagawa to go on such a thing? *Notes: \- Includes 9 extra chapters. \- Includes the one-shot "Fairy Megane" \- Was licensed and published in English by Chuang Yi (based in Singapore)*

For Shinonome Keisuke, high school student Kotone Tasuku is the only person in the world whom he can communicate with. Once a brilliant surgeon, Shinonome passes away at a young age, only to wander the world as a ghost, a ghost that only Tasuku can see and talk to. When an accident leaves Tasuku’s hot childhood friend Takeuchi Mai’s younger brother severely injured, the only way that he can survive is if Shinonome and Tasuku work together to become the most unusual and possibly talented pair of emergency surgeons the country has ever seen!

Tsubame's school has two sections: the school for regular students, and a school for "celebrities" (known as the fine arts course, or the "celeb course"). Tsubame's stuck in the normal school, and has no interest in the upper class life. Then she meets Chio, a male model taking the celeb course. Her life will never be the same again.

Shiro decides to start up his very own dragon knight army after joining Cao Cao, which only contain 300 men! New comrades later come to the battle between Zhou Yu's troops to fight for the land...

Side story focusing on Female Mage chasing after Hero. *Includes 1 prologue chapter.*

Horitsuba Private Academy. Early Childhood division, Elementary school Division, Junior high school division, High school division, University, Graduate School. On an enormous campus, these individuals make up a huge, complete city built entirely on private property. Dormitories, Laboratories, movie theaters, hospitals, banks and so on; every possible institution is available in this campus-city, running in perfect order. Over 10,000 people attend school and live here, including, students, staff members, authorized persons, other family members, and the like. Exactly. since Horitsuba Academy is somewhat well-known all over, there are also lots of exchange students from foreign countries...