A brief description of the Kanojo, Okarishimasu manga:
An ordinary student at Kinoshita University, Kazuya, just found out that the girl he loved left him for another guy. To get rid of his terrible sense of humiliation, he uses the “Diamond?” application to hire Chizuru Mizuhara, a “girl for an hour”. At first, she gives the impression of the perfect girl. Is that really so? Does this strange relationship have a future?