In a world where everyone communicates through a mysterious artifact known as the 'Hello', players step into the shoes of a character who awakens in a mind-bending labyrinth of memories and identities. Each encounter with residents—every hello—unlocks fragmented stories, revealing truths about them and the central character's own past. Choices matter sharply here; each salutation can lead to unexpected revelations, betrayals, or alliances. The stakes are high, and the only way to escape this kaleidoscopic nightmare is to piece together the ultimate question: whose hello holds the key to freedom?