I Became Famous in Ancient Times with a Toilet

Su Xiaomu, a toilet designer, travels to ancient times and becomes a maid to Xiao Heng, a fastidious man. She designs a simple toilet for him but faces constant trouble from Lu Wanyi, whose schemes include stealing her blueprints, blocking craftsmen, and bandit raids. Using modern business acumen and wisdom, she overcomes every crisis. At a selection fair, she wins with her mobile toilet design. After Xiao Heng proposes, Su Xiaomu is stabbed by Lu Wanyi during her wedding. When she wakes up, she is back in modern times and reunites with Xiao Heng at an exhibition.