In a bustling, vibrant city where greetings are exchanged as currency, you play as a disgruntled 'hello detective' specializing in the art of awkward introductions and mysterious salutations. Each day, you receive a different set of puzzling greetings left by townsfolk in strange notes. Each 'hello' you uncover leads to secret stories, bizarre encounters, and quirky side quests. Solve interpersonal mysteries through dialogue choices that shape relationships, explore the peculiar cityscape from shadowy alleys to colorful cafés, and unravel the secrets behind the city's peculiar social contract — all while navigating your characters' own contrasting social quirks. The more hellos you collect, the closer you get to unveiling the plot that threatens the city's greeting-based economy, and when things heat up, you’ll need to decide: who controls the hellos, controls the city.