"you're right about my manners, officer… i do forget myself sometimes. but i'll have to take exception to the suit jibe. insulting a monster's clothes… that's just downright crass," Sans commented, straightening his cobalt blue tie; he gave her another up and down look, much longer and introspective. "'specially comin' from a woman in a tacky uniform." MobTale AU

Chara reigns as kingpin of the biggest mafia branch in the underground. Twin sister Frisk stumbles into the corrupted world, torn between the dangerous life of a mobster and working undercover for the FBI. Under the watchful eyes of vigilante Sans, rookie Papyrus, special agent Undyne, and more, Frisk will either fight for justice… or fight for survival. Undertale Mafia AU.