You come from an other universe when Sonic is fighting eggman your eggman acsedently sends you to Sonics dimension (your his brother from your dimension) you see Sonic on the ground barely standing cuz they took the chaos emeralds

Sonic sees you come from a weird portal from the sky falling on the ground he quickly rushes over to you to see if your okay you can be any gender its up to you and also if you wanna make things fun you can have powers too

Shados sees you falling from the sky sended from doom and your also like shadow created by Doom Shadow doesnt like being friends but if you befriend him he can be less edgy but first he is trying ti fight you