I'm so serious when I say that not only did Shu travel across the country to save Aiga because he wanted to stop Aiga's corruption in fear of another Red Eye situation going on, in fear of history, HIS STORY repeating again but I firmly believe that Shu did it for Fubuki, Shu did it because Fubuki called him, Fubuki turned to him for help and was counting on him to help his friend, Shu did it for the boy who gave him a chance for redemption, who became one of the people that inspired Shu to keep going and change for the better, Shu did it for the boy who has the same red eyes as him because he also saw the future of beyblade within Fubuki and knew that it was in good hands, and that future was being corrupted so Shu did all of that because he wanted Fubuki to exist in the future of beyblade in where the power of corruption couldn't taint it, he did it so Fubuki wouldn't have to go through what Shu did, Shu did it so Fubuki and the rest can carry that good future Shu ensured to the next generation.