Sonic Forces lore explained badly!
A jackal attacks Sonic, Sonic is presumed dead, your 100% an OC teams up with Sonic's friends, Sonic ISN'T dead, Sonic fights a clone of Zavok, jackal is back to kill your OC, he tries to kill Sonic as well, Classic Sonic somehow came back, your OC and Sonic team up to defeat Eggman's army, Tails finds out the source of jackal's power is a Death Star ripoff, your OC destroys the death star ripoff, THERE'S A BACKUP POWER SOURCE AND JACKAL SUMMONS THE SUN OH GOD WE'RE ALL GONNA DIE, your OC has a prototype of said ruby, your OC destroys the sun, and we're all good.