Yu Yu Hakusho's Summarize Story: Section One

The story begins when Yusuke is killed while saving a child . He was not supposed to die in the accident, so , Koenma sends Botan to help Yusuke to prove himself to be a kind person in order to revive him . Yusuke does prove himself and revives. After that incident , Koenma is impressed by Yusuke's skills and asks him to become the Detective of the Spirit World. Yusuke's first assignment was to recover the 3 treasures of the Reikai which had been stolen . Yusuke cathes up with the first thief, the spirit eating demon and subdues him with much effort. Then, he goes after Kurama, who had stolen the second item to save his mother's life. Yusuke is touched by Kurama's efforts and helps Kurama . Eventually , Kurama agrees to give himself up. The last thief is Hiei . Hiei captures Keiko and fights Yusuke when he tries to rescue her. Yusuke defeats Hiei by a stroke of luck. Koenma then sends Yusuke and his friend Kuwabara to the home of Genkai , the famous martial arts exponent , to learn from her . Yusuke and Kuwabara are put through various tests , along with other hopefuls. Yusuke and Kuwabara both make it to the final round where Kuwabara fails to pass. Yusuke finds himself up against a formidable opponent , who turns out to be a demon. Yusuke fights to his best ability and triumphs once again. Hesubsequently becomes Genkai's deciple and learns to use the rei-gun. No long after , Keiko is attacked by the four sacred demons and taken to the makai. Yusuke and Kuwabara rush to save her and are joined by Kurama and Hiei , who are serving the reikai as part of their sentences for stealing the treasures. Kurama first takes on the xuanwu demon and defeats him with style.Next is the white tiger demon , who Kuwabara defeats after much effort.Hiei then challenges the green dragon demon whom he defeats with ease. Yusuke is left to deal with zhuque, the strongest of the four. Yusuke initially has great difficulty countering zhuque's various attacks but somehow finds strength in him to conquer his opponent. Yusuke then recieves news that a youkai named yukina was being kidnapped by a greedy human so that she could cry tears of gems to make him reich. Yusuke and Kuwabara rush to her rescue. Yukina was being guarded by 2 youkai , the Tohguro brothers and their subordinates. Yusuke and Kuwabara fight their way to the mansion where Yukina is held. Yusuke and Kuwabara are then pitted against the formidable Tohguro brothers. Yusuke and Kuwabara manage to defeat the Tohguro brothers. Then Hiei and Kurama arrive and deal with the human who was the mastermind. It is then revealed toYusuke that Yukina was Hiei's long-lost sister.Kuwabara sees Yukina and falls for her. (he does not know that she is Hiei's sister ; neither does she) Next , the younger Tohguro brother , whom everyone thought was dead , forces Yusuke to join the angouku buttsukai, a martial arts contest held in the makai where rich humans bet. Yusukue goes and is joined by Hiei , Kurama and Kuwabara and a mystrious masked exponent. They make their way to the island where the meet is contested.