Ueno would commute daily to work, and Hachikō would leave the house to greet him at the end of each day at the nearby Shibuya Station. The pair continued the daily routine until May 21, 1925, when Ueno did not return. The professor had suffered a cerebral hemorrhage, while he was giving a lecture to his class, and died without ever returning to the train station in which Hachikō waited.