"Isshuukan Friends." (一週間フレンズ。) is a manga series by Hazuki Matcha (葉月抹茶), published by Square Enix in Gangan Joker since January 21, 2012. An anime television series adaptation by Brain's Base began airing in Japan on April 6, 2014, and it has been licensed by Sentai Filmworks under the title "One Week Friends".
