[Vacuum mask under shower]

The man packed in the rubber sack is put in a bathtub.
And his head is covered with a vacuum mask.

The vacuum mask looks unique.
While he breathes, it repeats swelling and shriveling.
He can hardly breathe the fresh air.

The faucet floods the water into the bathtub.
And the mistress showers to him.

He can't struggle hard because the rubber and the bathtub were slippery.
But he shook his head intensely.

Before long, the water begins to soak to mask of zentai over through the vacuum mask.

-----------------
The movie from 'Wabi-Sabi-Moe' the Japanese bondage website.