At the second "Mankai Matsuri" event on Sunday, it was announced that 4-koma manga Yuuki Yuuna wa Yuusha-bu Shozoku (Yuuki Yuuna is a Hero Club Member) will receive an anime movie. The movie will screen alongside the first part of the Yuuki Yuuna wa Yuusha de Aru: Washio Sumi no Shou trilogy in March 2017. The lead cast from the first anime season will be reprising their roles. W-Toon Studio will be producing the movie.

Yuuki Yuuna wa Yuusha-bu Shozoku is drawn by Kotamaru and had been serialized in Dengeki G's Magazine since its September 2014 issue. A total of three volumes have been published by ASCII Media Works with the latest released on August 26. A new 4-koma manga by Kotamaru titled Washio Sumi wa Yuusha de Aru Gaiden: Yuusha Koushinkyoku (Washio Sumi is a Hero Spinoff: Hero March) began its serialization in the December 2016 issue of the same magazine on October 28.

Source: Dengeki G's Magazine

Yuuki Yuuna wa Yuusha-bu Shozoku on MAL