Mengo Yokoyari. Writer: Oshi no Ko. Mengo Yokoyari is a Japanese manga artist. She debuted as an adult manga artist in 2009. Her most famous work is the series Scum's Wish, which was adapted in a one-season TV anime series by the studio Lerche. Mengo Yokoyari dropped out of high school to become a mangaka assistant. She had wanted to become a manga artist since she was little.Yokoyari made her...