Buy Official Japanese, English Versions on DLSite

A girl wakes up to find herself being sold as a dog in a pet store.
Naked in a narrow glass showcase, she is exposed to the eyes of customers without mercy.
When she asks for help from the staff, her words are not understood, and she bends low to drink from the straw of a bottle of drinking water.
And she pees on pet sheets. She is sold as a dog and is treated like a dog, with no privacy.
Finally, a man comes along who wants to buy her.