Ryuk warns Light (Masataka Kubota) that he's being tailed by an FBI investigator (SHOGEN). Light wonders how much L (Kento Yamazaki) already knows about Kira's true identity...The nervous Light begins a series of tests to figure out how to use the Death Note to get rid of the FBI investigator. Meanwhile, Soichiro (Yutaka Matsushige) is astounded to learn that L consideres his children prime suspects.
