The manipulation of fate and destiny plays a significant role in Light Yagami's plans in the anime "Death Note." Light uses the Death Note, a powerful notebook that allows him to kill anyone by writing their name in it, to essentially become a god of the new world he envisions. By controlling who lives and who dies, Light believes he can shape the fate of humanity and create a world free of crime and corruption, where he reigns as a divine figure. His manipulation of fate and destiny fuels his ambition and fuels his quest for power and control.