ตั้งค่า
Taking place one month after the events that occurred in the movie Heaven is a Place on Earth. Living at the Sanzenin Mansion once again, Nagi returns to her old ways of life, until she receives word from American authorities informing her that she has a week to pick up her late father's belongings that was indefinitely delayed due to various circumstances. After receiving news of her father whom she doesn't remember, Nagi then meets a mysterious girl (with a hidden agenda) claiming to be Nagi's little sister. The series tells a new story that is original to the anime and not directly based on the manga. The main author of the original series Kenjiro Hata personally created the original concept for the story of this anime. (Source: Hayate no Gotoku! Wikia)
A new semester is about to begin, but Nagi is lazing around as usual. Hayate and Maria try to cheer her up without success until she gets impressed by a TV Show about aliens near Area 51 in Nevada, USA and wishes to go there to investigate. An opportunity arrives when she receives a call from the U.S. Police asking her to retrieve some of her late father's belongings, but Maria states that she is forbidden to go there until Silver Week. Nagi flees from the mansion in anger just to find later that she had forgotten her cellphone and wallet and is unable to get back home. However she is found by Hayate and when he is approached by a small child, he finds that Nagi was kidnapped. Hayate gets on the girl's bike to pursue the kidnappers and rescues Nagi from them. Just then Hayate and Nagi return home, the girl appears before them once more, introducing herself as Ruri Tsugumi and claiming to be Nagi's little sister.
Despite her shocking revelation, Ruri is ignored by Hayate and the others until she is finally brought before Nagi who hears from her that she is actually her sister, despite having no proof of it. Nagi allows her stay for a while, but after seeing her snooping around the mansion, she decides to take her to live with the other tenants of the Violet Mansion. Ruri refuses to stay, until Nagi is convinced to give her a chance. Nagi asks Ruri if she has any sort of special skill and she reveals herself as a master of Systema, strong enough to confront Hayate. Hayate is attacked mercilessly by her until he decides to fight back and she starts crying, which is later revealed as just a trick for him to open his guard. Nagi reprimands Ruri for using such underhanded tactics but compliments her for her fighting skill, even asking to learn it from her.
At Hakuo Academy, Ms. Katsura tells Hayate to deliver student council notes to Hinagiku. Hayate finds Hinagiku napping when Miki, Izumi, and Risa appears, waking her up, judging that Hinagiku is often scary. Hinagiku decides to be nicer for Hayate. Despite hearing her favorite tea cup get broken, and her sister already spend the money that she lend to her, Hinagiku shows a smiley personality to them; much to their surprise. Hayate suddenly ask Hinagiku to see a kids’ movie with him then Ruri joins them later. The kids in the theater tease them thinking that they are a couple, the movie starts shortly after but the film cuts off. Then Hayate takes Hinagiku to an amusement park; leaving Ruri behind. They enjoyed themselves until it was time for them to leave. Hinagiku ask Hayate to why did he take her out, he explains it was Miki and the others who told him to; thought she was having a bad day. Hinagiku says that she wouldn’t go out with a guy unless she likes him, but Hayate couldn’t hear that part.
Ruri is looking for a way to get close to Nagi in her search for some unknown item at her mansion. Chiharu and Kayura recommend her to buy some games for her to play with Nagi just to find later that she had already bought and played them. After both Nagi, Chiharu and Kayura have a heated discussions about their preferences related to manga, anime and games, Ruri asks them for some recommendations and they set for Tachibana's shop. While the trio argue about which manga she should start reading first, she ends up wandering into the R18 dōjinshi section just to flee in horror soon after. In the end, she ends up purchasing just a dōjinshi from an unknown author which Hayate recognizes as one of Nagi's original creations.
Angry at Maria for always scolding her, Nagi orders Hayate to follow her arround looking for some reason for her to scold the maid herself. Unable to find any bad trait about the maid, the butler stumbles on Yukiji who invites him for lunch just to learn that she has no money and intends to have him pay the bill. Meanwhile, Maria calls Mikado and asks about why there is no pictures or any info about Nagi's father, and he responds that all evidence of his existance was erased by him, as according to him, he was just a con artist who married Yukariko aiming for the Sanzenin fortune. As Hayate argues with Yukiji, both Ruri and Sonia appear and start ordering food, increasing the bill. As the four argue about who will pay the bill, a thief breaks into the restaurant, giving an opening for both the sister and Ruri to flee. The thief claims that he is stealing money for the sake of his sick little sister's medical expenses and Yukiji reprimands him while pointing his own gun at him and Hayate. Hinagiku appears mistaking her sister for the thief and stops her. With the thief turning himself to the police and Hinagiku leaving with her sister, Hayate remains alone at the restaurant, calling Maria to ask her for help with the expenses.
Silver Week has arrived but Nagi has no interest to set to Las Vegas and retrieve her late father's possessions, rathering to spend the day with Hayate instead. Later she pays a visit to the Violet Mansion, just to find that Ruri is alone there. Unable to leave when it starts raining, Nagi manages to have Ruri confess that her true intention is to obtain the elusive "Black Camellia", a treasure believed to be in possession of the Sanzenin family and Nagi asks her grandfather by phone about it. However, Mikado refuses to say anything beyond the fact that the treasure was stolen 13 years ago and she breaks her smartphone in anger. When the rain worsens into a storm, the two girls struggle to keep the house by themselves when Ruri saves Nagi from being hit by a large tree branch carried by the wind. When the storm passes, Hayate appears at the mansion and he gets a call from Mikado who reveals to Nagi that the Black Camellia was stolen by her father.
A story about Nagi’s father, Shin Hayek, is told how he was a thief then he met Yukariko and eventually fallen in love with her. Nagi discover the Black Camellia is in Las Vegas with Shin’s belongings. Nagi explains the Black Camellia is a clock that brings bad luck (but can grant the owner miracles for eternity). Ruri who is desperate decide to enter a quiz contest hosted by Fumi Hibino to win tickets to New York as a way to go to Las Vegas. In the end, Hinagiku and Ayumu won and want to see Ruka’s concert in Las Vegas. Ruri ran away wondering what to do next, since Nagi warned her not to do anything dangerous. Hayate comes looking for her when he, Isumi, and Sakuya witness her being abducted by a bird-like creature.
Hayate, Isumi, and Hinagiku (using her Shirosakura sword) manage to save Ruri from the bird-guy, but she refuse to tell them who he was. The next morning, at the mansion they receive a ransom note for Ruri’s return in Las Vegas; nonetheless, recognize the handwriting to be Ruri’s. Wondering if she really was kidnapped or not, Nagi finally takes the motive to go to Las Vegas and retrieve the Black Camellia. Testing the misfortune clock, Maria grabs it then suddenly the ventilation went up under her skirt in an eerie timing, and so Hayate took possession of the clock for now. While killing time in Las Vegas, Hayate got lost and his smartphone battery unfortunately died. He unexpectedly meets Ayumu saying their plane had a mechanical problem, thinking the Black Camellia caused it. Maria and Nagi found Hayate, from their viewpoint seeing as if he is kissing Ayumu. Much to Nagi’s shocking surprise just to find out he was only taking a bit of fuzz off Ayumu’s eye.
While entrusted with the Black Camellia, Hayate's bad luck has gotten much worse. At the hotel they’re staying, the trio: Izumi, Miki, and Risa overreacts to help search for Ruri, as Hayate tries to cease them two cops mistake his action as of indecency, then startup panic throughout the hotel. Nagi insist Hayate to leave when Yukiji takes the clock from him, she won billions from a casino but then thieves showed up and stole the money and the clock with her car. Later, Hinagiku receive a call from Izumi to where the thieves' hideout. Nagi goes along with Isumi and Sakuya to where Ruri is supposed to be at. There they find a tree in the desert and meets a woman who appears to be a demon, when Nagi tells her the Black Camellia been stolen the woman sends out Ruri and the bird-guy—Shidou to retrieve it while taking Nagi hostage. Hayate and Hinagiku saved Izumi and Yukiji from the thieves before Ruri appears and found the blond-hair guy who has the clock. Ruri knocks out the thieves using her skills, but just as she strikes the guy with the Black Camellia it suddenly transforms into a sword, Hayate pushes her out of the way and gets stabbed.
Nagi inquires the woman why does she desire the Black Camellia, saying it is a magical sword that grants eternity. When Hayate got stabbed by it he collapse and later gets up, however his personality seems to have changed. The woman and the tree appear and attempt to take the Black Camellia, the thieves try to fight back as their hideout catches on fire and escapes with Yukiji’s money. Hayate wants to talk to the woman, but Isumi interrupts them and release Nagi. The woman starts to weaken and retreats with Shidou and Ruri. As the police arrive, Nagi concerned about Hayate’s behavior, and then Hayate tells her that he "quits" being her butler, leaving Nagi alone. The next day, Nagi pretends to be okay without Hayate. They meet Kyonosuke with a new car saying Yukiji will pay him back for it wasn't aware that she was robbed. Kyonosuke takes Nagi and Ayumu a drive to Area 51 when Ayumu shows Nagi the Black Camellia she found last night. Then the car suddenly broke down, Kyonosuke and Ayumu left Nagi alone in the desert. Nagi begins to realize how important Hayate was to her and exclaim that she wants him back no matter what. Ayumu comes back and gives Nagi a helping hand. Meanwhile, Hayate minds his own business when Yukiji gets him to find her money by interrogating a thief that she caught. Hayate (now speaking English) reluctantly threatens the thief who gives them the location at the Starside Hotel.
