In a world where people's 'hellos' come to life as ethereal echoes, you play as a jaded detective investigating the bizarre phenomena that disrupted the daily greetings of your city. As you interact with these echoes, each revealing unique stories and dark secrets, you must navigate through layers of deception, unraveling a sinister conspiracy that threatens the fabric of communication itself. Choices you make shape the echoes' fate and your own, leading to shocking twists and multiple endings!