In 'Echoes of Hellos,' players assume the role of Alex, a witty and somewhat cynical sound engineer who discovers an unexplained phenomenon: every time a person greets someone with a cheerful 'Hello,' an echo of that greeting is captured in a mysterious parallel world. However, it’s not just echoes; these hellos have attracted bizarre entities that feed off positive vibes, causing chaos in reality. Players must navigate through quirky conversations, solve witty puzzles, and decipher relationships while trying to track down the origins of these hellos and prevent the entities from breaking into the real world. Along the way, they encounter an array of eccentric characters, each with their own unique hellos that lead to hilarious and unexpected outcomes.