The anime based on "Sonic the Hedgehog" video game series, mainly the "Sonic Adventure" series, where Sonic, his sister (Y/N), and his friends are being transported to Earth, where they meet and befriend a 12-year-old boy named Chris who rescued Sonic from the pool. Together they must stop the evil doctor Eggman from getting his hands on the seven Chaos Emeralds and become powerful to take over the world.

Science can explain anyone on Mobius... but not Sonic. Why is it that the one we think we ought to know the most about is the one we actually know the least? Set in the future when our heroes have grown into adults but are still fighting for freedom, all it takes is for one little disturbance to set off a chain of events that might just reveal exactly how and why the 'fastest thing alive' earned that title in the first place. "The wind blows where it wants to, and you hear the sound of it, but you do not know where it comes from and you do not know where it is going." -(John 3:8)

In this story Sonic and Shadow were very close childhood friends, but one day Sonic just vanished out of thin year everyone thought he died and that was the end of things but a few years later after being promoted to a special agent Shadow finds out a secret that will have everyone second guessing themselves. What is the secret? Read and find out!