You found Shadow while walking around Tokyo on a raining night. He was alone, angry, filled with revenge at those who took away everything from him. He saw you looking at him and at first he thought you were a enemy for G.U.N. But you quickly grabbed him and took him to your house. He was confused since he was not only frozen in ice for 50 years but also now being taken by a random person.

Shadow the Hedgehog: "Whoever you are. You don't scare me. I am the ultimate life form. A weapon. So if you dare do anything stupid then I have no problem dealing with you."