Who Said Hello?

In a bustling multiverse café that transcends dimensions, you play as an eccentric barista who discovers a mysterious message written on a napkin: 'Who said hello?' This cryptic phrase pulls you into a web of alternate realities where each customer is a character from a different world, each with their own secrets and quests. As you craft drinks, engage in witty banter, and mix ingredients that blend realities, you'll unravel the meaning behind the phrase while forging unlikely alliances. Will you solve the riddle and help customers find closure in their bizarre lives, or will you end up in a travel saga of your own?