Three decades since the initial demonic incursions, a fresh threat now looms over Tokyo.

Gai pursued the Troopers and their armaments, engaging the DST as yet another demonic onslaught commenced.

Musashi’s brother bursts into the DST headquarters, his resolve firm: he intends to join their ranks as a Samurai Trooper.

A figure from the past, an ex-Trooper shrouded in mystery, arrives with a palpable resentment directed at Ryusei.

Ramaga joined the conflict, his demonic strength swiftly overwhelming the Troopers.

The Troopers were struck by a devastating blow: a startling revelation, coupled with the loss of a fellow member, left them shaken to their core.

Jun Yamano, the keeper of secrets regarding the legendary armor known as "Haoutei"—the only defense against Rashinga—bears little resemblance to the boy in the old photograph. Completion of the Haoutei requires the Mirror of Domination, and…

The revelation left by Director Ujihara has shaken Kaito to his core; he struggles to reconcile himself with his altered reality. He discovers that assembling the three sacred treasures is merely a first step toward completing the Overlord,…

With the looming deadline for Ramaga’s completion, Mirei discovers a danger originating from those closest to her.

Ramaga seized Mirei as a prisoner, issuing a chilling ultimatum: unless the Troopers agreed to face his warriors in combat, she would remain beyond their reach.

Bolstered by a surge of resolve, the Troopers faced Ramaga. Yet, a disquieting question lingered: were they unwittingly fulfilling the demon emperor’s design?

The heroes gather together, determined to thwart Ramaga’s designs, yet the question lingers: at what price will their triumph be bought?

The Troopers travel to the Demon World to investigate a strange new barrier around Tokyo.