Whose Hellos Are These Anyway?

In a world where greetings are currency, you've just woken up in a seemingly deserted city with no memory of who you are or how you got there. As you wander the eerily vibrant streets, you discover that the very fabric of society relies on strangers exchanging personalized greetings. However, there's a sinister plot afoot: someone is stealing these greetings, causing chaos throughout the city. You must investigate and piece together the identity of the mysterious 'Salutations Thief' as you engage in witty banter, solve clever puzzles, and charade your way through the convoluted social networks of this greeting-driven economy. Will you reclaim the stolen hellos and restore harmony, or will you become another nameless 'Hi' in the void?