Ryuk

Ryuk (Japanese: リューク Ryūku) is a fictional character in the manga series Death Note, created by Tsugumi Ohba and Takeshi Obata. He is a bored Shinigami that drops a Death Note, a notebook that allows you to kill anyone simply by knowing their name and face, into the human world in order to have fun. It is picked up by Light Yagami, a young genius who uses it in an attempt to create and rule a world "cleansed of evil" as "God".