In 'Whose Hello?', players step into the shoes of Jax, a charismatic sound artist who mysteriously loses their voice one fateful night during an underground sound exhibition. As Jax, you navigate a vibrant yet twisted urban environment filled with eccentric characters, hidden motives, and perplexing sound puzzles. You must decipher a melody hinted to be the key to recovering your voice while unraveling the dark secrets of the city. Use your skills in sound recognition and dialogue to engage with quirky NPCs, create sound-based solutions, and ultimately confront the shadowy figure who took your voice. Every choice and sound reverberates through the story, leading to multiple endings based on your decisions.