In 'Whose Diary Is It Anyway?', players step into the shoes of Alex, a quirky amateur detective who stumbles upon a mysterious diary at a chaotic city flea market. Each entry in the diary belongs to a different eccentric character with a unique backstory, presenting clues to a larger, interconnected mystery. As Alex, players must decipher the diary's cryptic notes, interview the colorful cast of characters, and navigate absurd situations—all while trying to uncover the identity of the diary's true owner. Everything is connected, and hilarity ensues as players piece together clues through funny dialogue choices and unexpected plot twists, leading to various possible outcomes.