Strike

Strike (ストライク, Sutoraiku) is the 4th chapter of Volume five and 38th chapter overall.

Plot
At the new Kira Investigation headquarters, the investigation task force is watching Light and Misa on their date while L is still chained to Light.

After Misa complains about her lack of privacy, L reveals that he is really depressed. He was close to catching Kira because he truly believed that Light and Misa were the two Kiras in question. However, with recent developments, L has concluded that the powers of Kira can be passed from person to person. However, L is afraid that he is putting his life in too much danger and wants to quit.

Light stands up and punches L in the face for even thinking about giving up. Light and L keep fighting until Matsuda is forced to break up the fight.

Rem is still with the mysterious Yotsuba company member who is feverishly writing names. She suggests that he can stop writing the names of criminals because Misa has now been let go. The new Death Note owner, however, notes that a world without crime is bad for the Yotsuba company’s profits.

Light notices that the Yotsuba company has experienced an unusual profit increase.

Conception
The chapter's title "Strike" is about Light and L hitting each other. Ohba wondered who would "imagine" that the title referred to the action and said "I like these kinds of titles."