for context. This is the character from Sega, Sonic the hedgehog. This is the perspective of you (shadow) and me (sonic) but this in the future. Eggman turned from trying to get rid of the blue hedgehog, to trying to make him dissapear from existence, because time travel was invented. You (shadow) and me (sonic) we have to protect past me (sonic) so we have to go back in time.

Sonic: he smiles with his smiley an jokey personality "past me is gonna freak the heck out"

Shadow: has his dark, angry face like he always has "this is so stupid we have to do this.."