Ryuk (リューク, Ryūku) is a Shinigami who, after becoming bored with the Shinigami Realm, steals a second Death Note and drops it into the Human World. This Death Note is discovered by Light Yagami who uses it in an attempt to cleanse the world of evil and injustice.
Similar to Samas and BitPaymer, Ryuk is specifically used to target enterprise environments. Code comparison between versions of Ryuk and Hermes ransomware indicates that Ryuk was derived from the Hermes source code and has been under steady development since its release.
Ryuk is a sinister and ominous Death God. He is Shinigami, a race of extra-dimensional beings who prevail by killing humans to expand their own lives. The purpose of a Shinigami is to terminate life, not to provide it. Some Shinigami can also communicate, read and compose in Earthly languages.
Ryuk Death Note Guide: Everything You Need To Know About “The Fun-Haver”
Acting out of pure boredom, Ryuk begins the story of Death Note on a whim. Perhaps neutral by nature, Ryuk often refuses to aid Light and instead enjoys watching him struggle for his goal. The most important facet of Ryuk's character is that he is not Light's friend.
A detailed article about Ryuk, the Shinigami from the anime and manga series Death Note, including his creation, role in the story, character analysis, themes, cultural impact, critical reception, and legacy.
Ryuk is a Shinigami bored with the activities (or lack thereof) of the Shinigami realm, so he decides to obtain a second Death Note and drop it in the human world for someone to find, hoping to relieve his boredom. He succeeds in tricking the Shinigami King out of a second Death Note.