- Ryuk: [to himself] He's not the slightest bit daunted by the fact that I'm a shinigami. He doesn't suck up to me, and he seems to have no problem giving me a hard time.
- Ryuk: The Shinigami Realm is slowly rotting. We lead meaningless and empty lives, and the only reason we still take human lives is because we're afraid to die ourselves. The truth of the matter is that we no longer even known WHY we exist. In fact, I doubt there's any reason for our existence at all.
- Light Yagami: I'm a human using this Death Note to make the world a better place for other humans, but I wouldn't necessarily say that the Shinigami Realm is meaningless to humans, either.
- Light Yagami: I think I just figured out how to find the name of the guy who was following me today.
- Ryuk: How ya gonna do that?
- Light Yagami: I'm gonna use the rules of the Death Note to my advantage. I already know that if I write down a cause of death I've six minutes and forty seconds to record the conditions and exact time of death. First, I need to know exactly how far I can go in terms of specifying the details of death. This should be interesting.
- Light Yagami: [about the shinigami eyes] My plan is to create an ideal, new world free from evil and all criminals. And I intend to reign as a god in that world for a very long time. I might consider the deal if it lengthens my life, but not if I die sooner. I'd figure you of all people should know I wouldn't take this deal.
- Ryuk: Yeah, I still felt I should tell you that the deal exists just in case. Anyway, I've done my part. I don't need you to complain that I didn't tell you this early on.
- Light Yagami: This is what you call telling me early on? Don't you think you're a little late? I don't see why couldn't have told me this when we met or better yet you could've simply included in the instructions for the death note...
- Ryuk: Uh, good point.
- [to himself about Light]
- Ryuk: He's not the slightest bit daunted by the fact that I'm a shinigami. He doesn't suck up to me, and he seems to have no problem giving me a hard time.
- Light Yagami: [after the death of Kiichiro Osoreda] The Death Note never fails. You'll be next, Raye Penber.