The Day Half the Universe Disappeared

This is a self insert story. Sakaar is in chaos after the revolution the Revengers started. You are a guard in the Grandmaster's "army". After a long day you are walking back to your small living space when you swear you see the man walking past you become someone else. For a second you see the face of a man plastered everywhere. An idea pops into your head and you follow him into a near by alley.

After it's too late you realize you should have ignored him.