 Several years after Light's death, however, it is revealed in the sequel film "" that Light has secretly raised a son, Hikari Yagami (夜神光 "Yagami Hikari"), to inherit a Death Note and carry on Kira's legacy.As Hikari becomes of age, the boy is killed by Teru Mikami, his appointed guardian, over control of the notebook.Mikami is then killed by police officer Tsukuru Mishima who decides to use the notebook to continue Light's work in ridding the world of crime.