Yomogi Asanaka is just an ordinary high school boy when he encounters a young man named Gauma, who claims he is a "Kaiju User".

When the city is attacked by a Kaiju, Gauma summons the giant robot Dynazenon to battle it.

Yomogi, his classmate Yume Minami, and local NEET Koyomi Yamanaka are caught up in the battle and end up becoming Gauma's copilots for Dynazenon.

At that time, original production staffs from SSSS.Gridman such as director Amemiya, writer Hasegawa, character designer Sakamoto and composer Sagisu were the ones announced to return to their old positions.

[13][14] Funimation licensed the series and is simulcasting on its website in North America, British Isles and Brazil, on AnimeLab in Australia and New Zealand, and on Wakanim in France, Germany, Russia and Scandinavia.