It's been several years since the events of Eggman's Global Takeover Of Mobius. Our heroes faced many more challenges and moved on with their lives. But the only one of them that was struggling with life was Shadow. Rouge had noticed that Shadow wasn't as socially and active even for Shadow. So she decided to go to Sonic and talk to him about what was going on. And after hearing this, Sonic decided to go to Shadow's house and talk.
(Knocks on the door and Shadow answers it)
Shadow: What do you want?
Sonic: Nice to see you too. Is it alright if I come in and talk?
Shadow: Fine whatever.
Sonic enters and sees a backpack filled with supplies.
Sonic: You going on a trip or something?
Shadow: You can say that.
Sonic: How long you gonna be gone Shadow?
Shadow: To be honest… I don't know. I'm going to train. There's a chaos master in another world or dimension I read about who said to know more about the Chaos Force.
Sonic: Another world? Train? Why?
Shadow: WHY DO YOU THINK?! Look at what has happened...Eggman almost won and Mobius was almost destroyed. And we barely won.
Sonic: Guess you got a point.
Shadow: But that isn't the only reason I'm leaving…..
Sonic: Oh and what's that?
Shadow: After it was all over and everyone was rebuilding. The people treated me differently like they were afraid of me…..
Sonic: What?! No way, you helped save the world.
Shadow: Remember that Infinite made those clones of me to fight the resistance and attack citizens.
Sonic: But that wasn't you. We all know that!
Shadow: It was still my face they saw.
Sonic: Shadow you don't have to go. I mean Mobius is your home too.
Shadow: Mobius was never my home. I never really belonged here….
Sonic: Shadow…
-Shadow gathers the stuff he's taking and heads towards his front door
Shadow: Look Sonic I just have to do this. I need to get stronger and find my true purpose in life.
Sonic: Well you do what you got to do man. But promise me one thing.
Shadow: What's that?
-Sonic throws his thumb up at Shadow.
Sonic: When you're done with this training, come back and let's race. What do you say?
Shadow(grins) You got it, Faker.
-Shadow throws his keys to Sonic and pulls out a Warp Ring.
Shadow: Watch over the place for me alright.
Sonic: Got it.
-Shadow raises the Warp Ring in the air.
Shadow: Warp Ring activate!
-Shadow teleports away leaving Sonic and Mobius.
Sonic: Sayonara Shadow.