In 'Whose Hello?', you play as Sam, a washed-up private investigator in a quirky city where everyone has an unusual greeting habit. One day, you receive a mysterious postcard reading 'Find the One Who Says Goodbye' right before a local celebrity is found unconscious at a bizarre greeting competition. As you navigate through a series of eccentric characters, offbeat locations, and laugh-out-loud dialogue options, you'll unravel a conspiracy that leads to the very heart of this bizarre phraseology driven society. Will you track down the culprit who wants to silence the city's unique custom forever, or will your own greeting be the end of your career? Your choices determine who you greet, how you solve the riddles, and which endings you uncover.