January 6, 2026
35 years after the first demon invasion, a new menace threatens Tokyo.
Gai goes after the Troopers and their weapons, clashing with the DST as another demon assault begins.
Musashi's brother barges into the DST base, determined to become a Samurai Trooper himself.
A mysterious ex-Trooper bursts onto the scene, and he`s nursing a grudge against Ryusei.
Ramaga himself enters the fray, dominating the Troopers with demonic power.
A shocking revelation and the loss of a teammate leave the Troopers reeling.
