In 'Whose Diary Is It Anyway?', players step into the shoes of a witty amateur detective who stumbles upon a mysterious book in a small town library. The diary belongs to an enigmatic local figure who is rumored to have gone missing. As the player reads the entries, they must navigate through a blend of comedic and dramatic scenarios, unraveling the truth behind the missing person while interacting with quirky townsfolk, each hiding their own secrets and motivations. The choices the player makes will unveil different paths, leading to various hilarious outcomes or shattering revelations, ultimately uncovering who the diary truly belongs to.