What Did You Eat Yesterday? is a Japanese manga series written and illustrated by Fumi Yoshinaga. The slice of life series focuses on the relationship between Shiro Kakei and Kenji Yabuki, a middle-aged gay couple living in Tokyo, Japan. The manga has been serialized in the manga magazine Morning since February 2007, and was adapted into a live-action television drama by Shochiku that aired on TV Tokyo in 2019; a film sequel to the television drama was released in November 2021. Both the manga and its live-action adaption have received widespread critical acclaim, winning a Kodansha Manga Award, a Galaxy Award, and multiple Television Drama Academy Awards.