Yuyushiki (Japanese: ゆゆ式) is a Japanese 4-panel manga series written and illustrated by Komata Mikami, which began serialization in Houbunsha's Manga Time Kirara magazine from April 2008 issue. An anime television adaptation by Kinema Citrus aired in Japan between April and June 2013. An original video animation was released on February 22, 2017. The series' name is derived from the term "yuyushiki jitai" (由々しき事態, lit. "in a serious situation").