The first part of the anime debuted in July 2021, the second part premiered on October 2
The official site of IDOLiSH7 Third Beat! , the third season of IDOLiSH7 anime, revealed on Saturday that the anime will have 30 total episodes. The 26th episode of the anime will air on December 25, then episodes 27 to 30 will air for four consecutive weeks starting on February 5.
The third season is running for two split cours (quarters of the year). The first half of the season premiered in July 2021. Crunchyroll streamed the anime as it aired.
New episodes of the second half of the anime started on October 2 at 22:30 PM (9:30 AM EDT) on the Tokyo MX channel and the Abema service. The season also airs on Sun TV, KBS Kyoto, TV Aichi, TV Hokkaido, TVQ Kyushu Broadcasting Co., Ltd. and BS11.
The staff from the previous two anime and the Vibrato spinoff anime returned for the third season. Makoto Bessho is back to direct the new season of TROYCA and Ayumi Sekine has returned to deal with the scripts of the series. Ei Aoki is returning to supervise, and Kasumi Fukagawa is again adapting Arina Tanemura's original character designs. Masami Inomata returned as chief animation director.
The first TV anime based on the IDOLiSH7 smartphone game premiered in Japan in January 2018 and had 17 episodes. Crunchyroll streamed the series as it aired. The IDOLiSH7 Vibrato spin-off series of net anime shorts was then launched in February 2018.
The second season of the main anime premiered in April 2020. The first episode debuted before the rest of the season in January 2020, and Crunchyroll streamed the episode on the same day. Crunchyroll streamed the anime as it aired in Japan.
The second season was delayed starting from the fifth episode due to the declaration of a state of emergency against the spread of COVID-19. The season resumed with episode 3 in October 2020.
Sources: IDOLiSH7 Third Beat! anime website, Anime Hack