Black

Black (天国, Burakku) is the 9th and final chapter of Volume five and 43rd chapter overall.

Plot
The investigation team believes that one of the eight Yotsuba group members has Kira’s powers. However, they conclude that this Kira does not have the power to kill people by just looking at their faces because then Matsuda would not have made it out alive. This new Kira has assembled a group of seven other people to make decisions about who to kill next. They meet Fridays, and Kira commits the murders on the weekend.

Masahiko Kida then receives a call from Eraldo Coil, who is really Aiber. Kida is caught off guard because he had tried to hire Coil through an intermediary. Coil offers Kida to catch L for the Yotsuba group in exchange for $10 million. If they don’t hire him, he wants $2 million to keep his mouth shut. Kida calls another Yotsuba member named Ooi and tells him of the situation. The Yotsuba group meets and fears that Coil has figured out their connection to Kira. Arayoshi Hatori, another Yotsuba group member, in a panic, states that he wants to stop attending these meetings. When he is reminded that he might be killed by Kira, he quickly detracts his comment. They decide to hire Coil to catch L for them.

Aiber calls L to tell him that he is getting closer to Yotsuba by agreeing to catch L for them. Wedy also calls L and tells him that the Yotsuba security system is a joke. She figures that it will be easy to plant cameras in the Yotsuba group’s meeting room.

By the following Friday, the cameras have been planted, and the investigation is watching the meeting on their screens. They notice that one of the eight members is missing.

Conception
The chapter's title "Black" refers to the question of whether the Yotsuba are guilty or not. Ohba added that the black suits and ties of the remaining seven members also relate to the title.