El pecado de Oyuki (English title: Oyuki's sin, in Japanese Oyukiの罪) is a Mexican telenovela produced by Lucy Orozco for Televisa in 1988. It was based on an original same name comic book by Yolanda Vargas Dulché, who also adapted the screenplay for television. The comic tells the story of Oyuki, a young Japanese woman unfairly exploited by her evil brother. Her tragedy is intensified by falling in love with the son of the English ambassador in Japan, which triggers a series of obstacles in her path generated by the cultural shock.