The official website for the Yuki Yuna Is a Hero anime began streaming a promotional video for the second television season on Friday. The video introduces the season's story and previews Suzuko Mimori's opening theme song "Egao no Kimi e" (To You, Smiling).

A short version of the opening song's music video also began streaming on Friday:

A commercial promotes the September 20 Blu-ray release for the 2014 television anime:

The second season will premiere in October, and it will have two parts: Yūki Yūna wa Yūsha de Aru: Washio Sumi no Shō and Yūki Yūna wa Yūsha de Aru: Yūsha no Shō. The first part will be a six-episode recut of the three Yūki Yūna wa Yūsha de Aru: Washio Sumi no Shō films that are screening in Japan. The second season will also stream with English subtitles this October.

The first two films debuted in Japan March and April, and the third opened on July 8. The anime films adapt Takahiro and illustrator BUNBUN's illustrated novel series Washio Sumi wa Yūsha de Aru (Washio Sumi is a Hero). Project 2H is credited as the original creator, Takahiro (Minato Soft) is credited with the original plan designs, and BUNBUN is credited with the original character designs. Seiji Kishi, who directed the first anime season, is the chief director.

The second half of the second season will be a direct sequel to the first season.

The first anime season's story takes place in the era of the gods, year 300. Yūna Yūki lives an ordinary life as a second year middle school student, but she's also a member of the "Hero Club," where club activities involve dealing with a mysterious being called "Vertex."