Susumu and Yui's only son, Katsuhiko, needed a huge amount of money to undergo surgery. - A wealthy man named Sonoda is willing to pay for Katsuhiko's surgery if certain conditions are met, so Susumu and Yui desperately go to see Sonoda in person. - Sonoda presents the two with an outrageous condition: ``I want to hire Yui as a meat urinal for one year.'' - Susumu was strongly against it, but Yui's strong desire to help Katsuhiko led her to sign the contract.
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