This humanoid robot transforms from Blaister into a gigantic robot using the "Bry Synchron Maxim" under the command of "Bry Synchron Maxim."
Due to the "Synchron Principle" developed by Dr. Edmond, it changes size by extracting mass and energy from another universe during transformation. While there are various theories about this principle, given that the transformation can be faithfully reproduced even in toys, it is more appropriate to consider it a mass change after transformation rather than a "shape change." While it is equipped with internal weapons, these are merely auxiliary; its lethal weapons are those teleported from the multiverse and those projectiles from the Bry Carrier.
In the sequel novel, after the fierce battles of the TV series, the robot reaches the end of its lifespan, and the spaceship that becomes the new base for Cosmo Ranger J9 inherits the name "Bryger" and the wolf emblem.
In episode 41 of the third series, "Ginga Gale Sasuraiger," Blager makes a cameo appearance as part of a parade alongside the J9 Ginga Gale Squadron (dressed as them).