Problem Children are Coming from Another World, aren't they? (Japanese: 問題児たちが異世界から来るそうですよ?, Hepburn: Mondaiji-tachi ga Isekai Kara Kuru Sō Desu yo?), also known as Mondaiji (問題児), is a Japanese light novel series written by Tarō Tatsunoko and illustrated by Yū Amano. An anime adaptation by Diomedéa aired from January 11, 2013 to March 15, 2013. Part 1 of the series ended on April 1, 2015 with twelve volumes total with Part 2 beginning on June 1, 2015 under the new title Last Embryo (ラストエンブリオ) and a new illustrator, momoko.