Episode 12 of "Hikikomari Kyuuketsuki no Monmon" begins with a massive attack led by the formidable 5,000-strong Daydream Unit, a squadron built on violence and fear. Their leader, President Madhart of Gerra-Aruka, is confident in their strength, but his arrogance is challenged by the resolve of his enemies.

In a daring report, Melca Tiano of Six Nation News exposes the inhuman atrocities in Gerra-Aruka, particularly the cruel experiments in Daydream Paradise. This revelation sparks public outrage and sets the stage for a global response against Madhart's tyranny.

Amidst this chaos, Lady Komari and Nelia Cunningham carry out a bold rescue operation in Daydream Paradise. They free numerous prisoners, including sympathizers of the Arukanian royal family and victims of brutal experiments.

Gertrude Rainsworth, previously exposed as a traitor, confronts Nelia, claiming her actions were meant to protect her from further harm. Despite Gertrude's intentions, Nelia rejects the idea of living as someone else's pet, emphasizing her desire for true freedom and change.

The episode reaches its climax with the confrontation between the Daydream Unit and Lady Komari's forces. Though outnumbered, Lady Komari's determination and her newfound alliance with Nelia prove to be formidable strengths. United, they stand against the overwhelming might of the Daydream Unit.

The episode ends with the citizens of Gerra-Aruka rising against Madhart, inspired by Lady Komari and Nelia's actions. This uprising marks the dawn of a new era, where ideals of peace and cooperation take precedence over tyranny and oppression.