With Japan's population aging, around 2 million adults now use diapers, and incontinence management is a major burden for many elderly citizens and their carers. We follow the work of professional carer Yoshimi Ui, who is developing a bed sheet equipped with odor sensors and wireless technology to automatically monitor discharge within a patient's diaper. By relaying regular updates to carers, this revolutionary device removes the need to regularly check a patient's undergarments directly.