It is a machine player of "Spike Brothers", a powerful team of the rule-ignoring violent sport "Gallows Bowl". This prototype machine's internal structure is installed with an out-of-spec mana circuit, and even multiple ordinary ogre players could not stop its charge. There is no problem in its power output, but a weakness has been found, that its external armour has insufficient endurance to withstand the engine's output. After all, it is a machine with an illegally modified engine, and efforts are required to deal with its lack of endurance, especially that of its feet. Now, its lack of endurance is being investigated in real matches.
The prototype machine, without pain or emotions, gallops on the field with no facial expression, only leaving irregular "breathing" sounds of its air brake. It gallops towards an honorable destruction, decorated with scraps of its enemies and itself.