GVG-362 Busty widow Yui Hatano gang-playd by old workers and turned into a sex slave

Yui lost her husband, who ran a factory. And there are three senior workers who work at the factory. They continue to work at the factory even after losing their master. But one day, when they find out that the factory’s financial situation is deteriorating, they fear losing their jobs and hold a grudge against Yui, so they assault her…