In 'Whose Hello?', players step into the quirky shoes of Charlie, a professional greeting card writer whom fate has decided to turn into an unwitting detective. One day, Charlie receives an anonymous postcard featuring a mysterious drawing and a simple greeting: 'Hello'. As it turns out, this epistolary enigma leads him through a labyrinth of hidden relationships, long-buried secrets, and the oddly vibrant community of people whose lives intersect at a peculiar mail drop. Players must navigate through eccentrically personalized plotlines, choosing which relationships to nurture, which eccentric characters to gather intel from, and which corrupted greetings to unravel in a madcap adventure filled with dark humor and heartfelt revelations.