Eight is an orange robot in love with his creator. He was created to be the ultimate nursing robot by the Sanzenin Technology Division. He is waterproof and equipped with "nursing missiles" and rocket boosters. Eight's downfall is his quick temper. He snaps after being called "ugly" and seeks revenge after he is defeated. Through his dialogue, he reveals that he only desires revenge in order to prove himself to the one he loves: his creator. Sadly, Shiori has a habit of being totally dismissive of him, going as far as telling him she made a "mistake" in putting him in line for incineration when he actually needed to be trashed in a more appropriate category. Nonetheless, he eventually gets a reprieve after his latest upgrade, when he becomes Shiori's boyfriend after finally confessing to her. Eight receives an upgrade before each appearance. He is upgraded to v8.1 after his first defeat, upgraded to v8.2 before meeting Hayate in the amusement park, v8.3 after he becomes a couple with Shiori, and upgrades his form after Shiori is transferred to Hakou Academy. In the anime, Eight upgrades himself to v8.1 after he steals the control chip from Nursing Robot Nine and upgrades to 8.2 as his second form, but he is reverted back to v8.1 after he is beaten by Yukiji and Hayate.  (Source: Hayate no Gotoku! Wikia)

Hayate Ayasaki's life wasn't great, but when he loses the job he used to support his good-for-nothing family, and his deadbeat parents sell him to the Yakuza for cash, it really hits rock bottom! Faced with having to pay off the huge debt before he's converted into black market organ parts, a desperate Hayate decides to kidnap oddball heiress Nagi Sanzenin for ransom... but when even that goes wrong and he accidentally ends up rescuing Nagi from other kidnappers, it turns out that Hayate is the bodyguard that Nagi has been looking for! So now he's the Sanzenin family's butler, and… maybe… it might be the start of a potential romantic relationship… assuming Hayate can survive the on-the-job training, of course.<br>
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(Source: Sentai Filmworks)

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__Non-anime roles:__
- Guilty - Goddess of Victory: Nikke (VG)
- Eula - Genshin Impact (VG)
- USS California - Azur Lane (VG)
- Caesar King - Zenless Zone Zero (VG)
- Helena Martin - Reverse Collapse: Code Name Bakery (VG)

Hardworking Hayate has a plan to pay back the yakuza—who are now the legal owners of his body parts: he’ll kidnap someone and ransom them for a mountain of money! But things get tricky when his would-be kidnappee—who as luck would have it is the daughter of a mind-bogglingly wealthy family—mistakes Hayate’s actions for a confession of love, and subsequently hires him to be her personal servant. At least his employment future is secure, or so he thinks…
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(Source: Viz Media)