The Kira tapes are a number of video tapes used by Misa Amane (aka the Second Kira) as part of a plan to contact the real Kira. The Kira Task Force also uses similar tapes in order to try to control the Second Kira. A written diary is also involved. The tapes and diary dominate much of the storyline between Chapter 23 "Hard Run" and Chapter 31 "Easy" and are mentioned in Chapter 33 "Removal" as the main proof against Misa after her arrest.