Yusuke succeeds with the help of his friends Keiko Yukimura and Kazuma Kuwabara. After returning to life, Koenma grants Yusuke the title of "Underworld Detective" Reikai Tantei? "Spirit World Detective", charging him with investigating supernatural activity within the Human World Ningen Kai? Soon Yusuke is off on his first case, retrieving three treasures stolen from the Underworld by a gang of demons: Hiei, Kurama and Goki.
 Yusuke collects the three treasures with the aid of his new technique, the "Rei Gun", a shot of aura or Reiki Reiki? "Spirit Energy" fired mentally from his index finger.  He then travels to the mountains in search of the aged, female martial arts master Genkai. Together with his rival Kuwabara, Yusuke fights through a tournament organized by Genkai to find her successor.
Yusuke uses the competition as a cover to search for Rando, a demon who steals the techniques of martial arts masters and kills them.  Yusuke defeats Rando in the final round of the tournament and trains with Genkai for several months, gaining more mastery over his aura.  Yusuke is then sent to Maze Castle in the Demon Plane Makai? "Demon World", a third world occupied solely by demons, where Kuwabara and the newly reformed Kurama and Hiei assist him in defeating the Four Beasts, a quartet of demons attempting to blackmail Koenma into removing the barrier keeping them out of the human world.Yusuke's next case sends him on a rescue mission, where he meets Toguro, a human turned into a demon. In order to test his strength, Toguro invites Yusuke to the Dark Tournament Ankoku Bujutsukai? "Dark Martial Arts Association", an event put on by corrupt, rich humans in which teams of demons, and occasionally humans, fight fierce battles for the chance to receive any wish they desire. Team Urameshi, consisting of Yusuke, Kuwabara, Kurama, Hiei and a disguised Genkai, traverse through the strenuous early rounds to face Team Toguro in the finals and win the tournament. They learn that Team Toguro's owner, Sakyo, was attempting to win in order to create a large hole from the human world to the Demon Plane and allow countless demons through.  With his loss, Sakyo destroys the tournament arena, killing himself in the process. Kuwabara and the others rescue him and learn that the whole scenario was a test put on by Genkai. It is disclosed that Shinobu Sensui, Yusuke's predecessor as Underworld Detective, has recruited six other powerful beings to help him take over where Sakyo left off, opening a hole to the Demon Plane in order to cause genocide of the human race. Yusuke and his friends challenge and defeat Sensui's associates one-by-one, culminating in a final battle between the two detectives. Sensui kills Yusuke then retreats into the newly opened portal to the Demon Plane.
Yusuke is reborn as a partial demon, discovering that his ancestor passed down a recessive gene that would hide until an heir with sufficient power surfaced, when his demonic lineage would be revealed.  Yusuke travels to the Demon Plane and defeats Sensui with the aid of the spirit of his ancestor who takes control of Yusuke's body to finish the fight. As they return to the human world, Yusuke is stripped of his detective title as King Enma orders he be captured and executed in fear that Yusuke's demon blood could cause him to go on a rampage in the human world. Yusuke, unsettled at having been controlled by his ancestor Raizen, accepts an offer by Raizen's followers to return to the Demon Plane. Raizen, desiring a successor to his territory, is on the brink of dying of starvation, a death that would topple the delicate political balance of the three ruling powers of the Demon Plane.
Hiei and Kurama are summoned by the other two rulers, Mukuro and Yomi, respectively, to prepare for an inevitable war.  The three protagonists train in the realm for one year, during which time Raizen dies and Yusuke inherits his territory. Yusuke takes initiative and proposes a fighting tournament to name the true ruler of the Demon Plane, which is agreed upon by Mukuro and Yomi.
During the tournament, Yusuke and Yomi meet in the second elimination round where Yusuke is defeated and knocked unconscious. Yusuke awakens days later to find that the tournament has ended and that a similar competition is to be held every so often to determine the Demon Plane's ruler.  Production Author Yoshihiro Togashi stated that he began working on YuYu Hakusho during a period of time around November 1990, though he forgot the exact time.  As a fan of the occult and horror films, he desired to write and illustrate a manga based on his interests.  Togashi had previously published an occult detective fiction manga titled Occult Tanteidan, of which he referenced positive reception from readers as a reason for continuing to create manga.
 When first producing YuYu Hakusho, he did not have a clear idea of what he wanted to call it. He used the tentative title "How to be a Ghost" while presenting rough drafts to his editors. Once given the go-ahead to begin publication, Togashi proposed "YuYu-Ki (Poltergeist Chronicles)" for the title, as there would be battles with demons and it would be a play on the title SaiYu-Ki. Because a series with a similar name (Chin-Yu-Ki) had already begun publication, Togashi quickly created an alternative: "YuYu Hakusho (Poltergeist Report)".
 He commented that he could have used "Den (Legend)" or "Monogatari (Story)", but "Hakusho (Report)" was the first thing that came to his mind.  He contiguously developed the names of the main characters by skimming through a dictionary and taking out kanji characters he found appealing. "Yusuke Urameshi" is a pun, "Kazuma Kuwabara" is a combination of two professional baseball players, and "Hiei" and "Kurama" are "just names that popped into [Togashi's] head".  When he introduced the latter two characters in volume three, the author had early plans to make Kurama a main character but was not certain about Hiei.  The manga's shift from occult detective fiction to the martial arts genre after Yusuke's death and revival in the early chapters was planned by Togashi from the beginning.
 The series borrows many elements from Asian folklore, particularly Buddhist beliefs in the afterlife.  Togashi came up with the concept of the Ningenkai (human world), Reikai (Underworld), and Makai (Demon Plane) as being parallel planes of existence in the YuYu Hakusho universe.He thought of them as places that one could not easily travel between using modern technology, but rather as a spirit lacking a material body.  However, the idea for the "territory" powers from the Sensui story arc was parodied from a separate, unnamed work by Yasutaka Tsutsui.  For his drawing materials, Togashi used drafting ink and Kabura pens throughout the creation of the series. While his style of artwork began with screentone, he gradually developed into minimalism.
As the series progressed, he would draw figures and faces very detailed or "cartoony, sketchy and jumping with action" whenever he desired such effects.  During the years he worked on YuYu Hakusho, Togashi would calculate the personal time he had based on a formula of four hours per page without scripting and five hours of sleep per night. He wrote in his own djinshi Yoshirin de Pon! That he stopped the production on YuYu Hakusho out of selfishness.  The author had originally wanted to end the manga in December 1993, at the climax of the Sensui arc.  Although there was not a large demand from the editorial staff, Togashi was under a great deal of personal stress at certain points of the series' run, particularly during its final six months of publication.
He claimed that, beginning with the Dark Tournament arc, inconsistent sleep resulting from overwork was causing him health problems.  He noted himself as being very ill while working on the color pages for Yusuke's match with Chu. There were also many instances where he would create nearly entire manuscripts by himself, such as Yusuke's meeting with Raizen and the battle between Kurama and Karasu.  Togashi was relieved at the conclusion of the manga.  The author claimed to not have been involved in the production of the YuYu Hakusho anime adaptation due to his own work schedule. He stated that he was greatly impressed by Shigeru Chiba's voice depiction of Kuwabara, admitting that the voice actor understood the character better than Togashi himself. The item "YuYu Hakusho (Vol. 1-19) English Manga Graphic Novels SET lot New" is in sale since Friday, May 11, 2018.
This item is in the category "Collectibles\Comics\Manga". The seller is "jcollectibles2011" and is located in San Marino, California. This item can be shipped to United States.