L Lawliet, known mononymously as L, Hideki Ryuga, and Ryuzaki is a fictional character and the main antagonist in the manga series Death Note, created by Tsugumi Ohba and Takeshi Obata. He is an enigmatic, mysterious, and highly-esteemed international consulting detective whose true identity and background is kept a secret. He communicates with law enforcement agencies only through his equally inexplicable handler/assistant, Watari, who serves as his official liaison with the authorities. Though his past is shrouded in mystery, he has gained a reputation as arguably the world's greatest detective/criminal profiler.