Undercover ∿ Sonadow (ON HOLD)

There once lived a hedgehog, fast, blue and a hero, by the name of Sonic. One day, he goes missing. Traces of where he once were lay in the ground, but even with clues, he couldn't be found. His friends mourn, and as years pass, lose hope of finding him. Shadow the hedgehog, a former rival of Sonic, gets sent on a mission to find the blue blur. G.U.N. believes that a mysterious person whose helped them during Eggmans most brutal attacks may connect to Sonic the Hedgehog's disappearance.

What happens when Shadow and the Mysterious person stumble upon each other, on the mysterious persons day off?

───────ೋღ 🌺 ღೋ───────
First story on this account, but not my first story in general.
Some things are a little obvious in the description, and I don't want this story to be too long. at maximum, it'll be 20 chapters long if I do finish.

Obviously, this is for the sonadow shippers. There wont be any smut, only fluffs.

⚠INACTIVE UPDATES!!!!!!⚠
❁3 MORE CHAPTERS

❁Story Cover Credits: galaxyfire1997 on Reddit