Brothers (A Sander Sides x Undertale Crossover)

Brothers. That's what they were.

Virgil and Sans were brothers, and, technically, still are. Sans became a skeleton when he fell down Mt. Ebott. Virgil became a side when he committed suicide because he was alone, believing his older brother died. So what happens when they meet again? And what happens when Sans visits Virgil, and the other sides find out? What happens when the AUs follow Classic, who's been disappearing recently?

Ships:
Virgil x Roman

Classic x Error