The song will be included in the Saekano theme song collection EP to be released on October 23.
She co-writes the lyrics of the song with singer-songwriter Miku Sawai, who sang the ED theme for the TV anime first season.
The film’s theme song “glory days” is confirmed to be sung by 27-year-old singer Haruna Runa, who performed the OP theme songs for the two previous Saekano TV series in 2015 and 2017.