In 'Whose Heart Is It, Anyway?', you play as a quirky, sarcastic detective named Sam Heartwell, who specializes in solving bizarre romantic mysteries in a whimsical city called Lovelune. After receiving a mysterious heart-shaped package with a cryptic love letter, you discover it holds the key to solving a series of romantic entanglements that could turn the town upside down. As you navigate through comical encounters with eccentric townsfolk, find hidden clues, and decide on the romantic fates of various characters, your choices will determine not only the love lives of Lovelune's residents but also your own. Can you juggle affection, humor, and heartstring pullings while piecing together the romance riddles that await?