Taimanin

"Then from now on, you are the commander of Goche Academy and the Taimanin. The task of fighting against the demons in the future will be left to you."
"Eh? Wait, wait, wait! Are you sure? I'm not even a Taimanin, essentially!"
Omega was entrusted with an important task by a piece of order without knowing what was going on. If his mission as a commander was only to fight against demons, that would be fine.
But the source of the challenge also includes these humanoid self-propelled juicers who can easily complete the task of "sitting on the ground and vacuuming". By then, Omega will not even be able to protect his own underwear, and it will be considered a success if he can avoid being squeezed into a mummy on the spot.
Regardless of whether Omega's final fate is to become a water dispenser that never runs dry, or the Taimanin becoming fire weapons one by one, the curtain has already been raised and no one can stop it.