"Opening" the bottle is just a figurative term, an experienced Demon Hunting Master wouldn't be foolish enough to actually lift the lid and peer inside.
Rexasor took out powder, sand, and potions, laid out a magic array with multiple effects, then made a gesture, traced the pattern of the spell, and cast the judgment spell specially used for interrogating demons.
A pillar of white energy, attributeless, shot from Baldhead's fingertip, landing on the exquisite embossed pattern on the surface of the bottle.
The inbuilt enchantment effect of the metal bottle, [Stone Furnace], was activated, changing the bottle's silver-white glow to the look of dull grey stone material.
A stone prison, shrunk by more than ten times, appeared before the eyes.
The exposed full-body Pleasure Commissioner, as limp as a fish out of water, lay limp on the stone floor, the bulging front of his chest slightly undulated with his weak breathing, looking like it could stop any moment, causing death.