Yagami Light is the main character in the popular manga and anime series Death Note, created by Tsugumi Ohba and Takeshi Obata. He is a highly intelligent high school student who discovers a mysterious notebook called the Death Note, which allows him to kill anyone by writing their name in it. Light aims to rid the world of criminals and create a utopia where he reigns as a god. As he uses the Death Note, Light adopts the alias Kira and becomes a target for law enforcement, particularly the brilliant detective known as L. The series explores themes of morality, justice, and the consequences of absolute power as Light's actions lead to a complex cat-and-mouse game with L.