Easy

 Easy is the 6th chapter of Volume four and 31st chapter overall.

Plot
After Misa leaves, Light realizes that Misa is a celebrity in Japan with her face plastered all over the Internet. Light bemoans the fact that Misa has now become less of an advantage and more of a burden.

When Light arrives at the headquarters the next day, the team is watching the final tape sent by the second Kira. Upon watching this, L deduces that the second Kira and the real Kira have joined forces. He refers to the fact that the second Kira changed his mind so suddenly about meeting Kira and has also started advocating Kira’s goals, as if he was ordered to by the real Kira. L also notes that he believes that it’s less likely that Light is Kira because if Light was Kira, he would order the second Kira to threaten L into revealing himself on TV. Light answers by saying that if he was Kira, he wouldn’t do that because he knows that L would find some way to not appear on TV. L acknowledges that he hopes Light isn’t Kira because Light may be his first friend ever.

Because L sensed a connection between Kira and the second Kira, Light decides that seeing Misa is now even more dangerous. Misa, however, shows up once again unannounced in the street, and Light takes her to his house. Light asks Rem if she cares for Misa, and if she will do anything to make her happy. When she answers yes, he asks if she could kill L because it will make Light happy, and Misa is only happy when Light is happy. Rem agrees because L means nothing to her.

Conception
The chapter title "Easy" refers to the dialog from Light stating "L is going to die..." Ohba said that when he wrote the line he thought "What? This easily?!", so the title also refers to Ohba's thoughts.