It will be the third time for Evangelion to collaborate with the Shinkalion anime, following the first TV anime series in 2018-2019 and the feature film Shinkansen Henkei Robo Shinkalion the Movie: Mirai Kara Kita Shinsoku no ALFA-X in December 2019.
Its second TV anime Shinkansen Henkei Robo Shinkalion Z has been broadcast in Japan since April 9, 2021.
Its first TV anime Shinkansen Henkei Robo Shinkalion the Animation was aired for 76 episodes from January 2018 to June 2019, then followed by a feature film Shinkansen Henkei Robo Shinkalion: Mirai kara Kita Shinsoku no ALFA-X (Godspeed ALFA-X that comes from the future) in December 2019.