Aged meat bun 4

Three sisters, Yumika, Ayano, and Mei, are worried that they have gained weight recently. The three sisters are worried that they won't be able to get a boyfriend with their bodies, so they decide to go on a diet. Yumika invites a masseuse, Ayano a health equipment salesperson, and Mei invites an aerobics instructor to her home to work on her diet while sweating... Thanks to their hard work (?), the three sisters successfully found a boyfriend. However, her diet fever doesn't subside and she even comes up with the idea of ​​taking some dubious medicine...