Kanojo, Okarishimasu

Kazuya Kinoshita is devastated when his girlfriend Mami ends their relationship after only a month, so he turns to an app that lets him rent a girlfriend for a date. He meets Chizuru Mizuhara, a beautiful and considerate young woman who seems almost too perfect, until his suspicion of her professional kindness brings out her much sharper real personality. Their meeting should end there, but a family emergency prompts Kazuya to introduce Chizuru to his grandmother as his actual girlfriend. The lie becomes increasingly difficult to undo as their families and college lives overlap, while the line between paid affection and genuine feeling slowly begins to blur.