Masochistic anal slave dog

Nozomi married her husband, a business owner, three years ago. However, her husband's company goes bankrupt...and debt repayments fall behind, so Nozomi is taken to a man named Kasai at the pet shop <Mikyu Shoten>. Kasai sees Nozomi's potential as a slave dog at first sight and immediately sells Nozomi to Sakurai, a breeder with whom he has a close relationship. From that day on, Nozomi was even trained anally by Sakurai. Furthermore, Sakurai plans to take Nozomi to a sad dog social gathering where slave dog lovers gather...