In 'Whose Diary Is It Anyway?', you play as a quirky amateur detective enlisted by your eccentric neighbor to uncover the truth behind a forgotten diary discovered in their attic. As you read through entries filled with secrets, scandalous events, and unexpected plot twists, you must choose to follow various leads across your lively town, interviewing bizarre characters, piecing together clues, and deciding whom to trust. The choices you make will determine which secrets to uncover and which relationships to mend, leading to multiple endings that reshape the town's fate.