Which episode was Matsuda Jinpei’s last text message in?

Episode 304. In the 304th episode of "Detective Conan", although Matsuda Jinpei and Sato Miwako only got together for a week, they gradually became fond of each other. Before his death, Matsuda Jinpei sent Sato a text message: "I seem to like you." Matsuda Jinpei's confession did not receive a reply. It was not that Sato was heartless, but that Matsuda had no chance to see Sato again.