Misfortune

 Misfortune is the 6th chapter of Volume three and 22nd chapter overall.

Plot
At the hospital, an upset Light asks if this was the work of Kira. However, Soichiro thinks that it was just a normal heart attack caused by too much stress. After Soichiro confirms to Light that Ryuga is the real L, L tells the bed-ridden Soichiro that his suspicions about his son have increased. Then, L continues to ask Light about what he thinks of the case. Light says that Kira must be an affluent child, and L is impressed because he was thinking exactly the same thing. As L and Light leave the hospital, Soichiro tells them that he doesn’t think that Kira himself is evil, but having the power of killing people is what made him evil.

Light, once again, confronts L about his suspicions that he is Kira. L tells him that he is confident that the truth will come out, whether he is Kira or not.

After L leaves, Light tells Ryuk, in regard to what Soichiro said earlier, that he has never considered gaining the power of the Death Note a misfortune. Ryuk answers by telling him of another shinigami rule: "Humans haunted by shinigami have nothing but misfortune". Light simply answers that Ryuk is about to see an exception to the rule.

Conception
The chapter's title refers to Ryuk's statement about how humans who use the Death Note always face misfortune.