During a weekend getaway at a secluded lakeside estate, a group of friends finds themselves entangled in a web of secrets, deception, and advanced technology. As tensions rise and loyalties are tested, they uncover unsettling truths about themselves and the world around them.
Yuta Hibiki finds himself drawing Gridman, who he seems to have missing memories of. Now in his second year at Tsutsujidai High School, Yuta decides it's time to confess his feelings for Rikka. But their peaceful days would come to a end as Gridman suddenly returns with a warning: "The balance of this world is collapsing."
High schooler Yomogi comes across Gauma, a strange drifter claiming to be a Kaiju User. Soon after, a Kaiju attacks, and Gauma summons the giant robot Dynazenon to fight it. Yomogi, his classmate Yume, and local NEET Koyomi are caught in the chaos and join as copilots. Together, they form the Gauma Team. But Kaiju Eugenicists, a secret society of teens with special powers, stand in their way.
In a not so distant future, humans can upload their individual consciousness to a sentient machine after they have died. This allows them one final day on earth to rebuild their memories through the eyes of a bionic vessel.
A sentient typewriter, that brings an unseen author's dreams to life, makes itself known.