Inside Out [Mello x Reader]

(y/n) is a cold-blooded assassin who's only known by the pseudonym "Burgundy". After she was offered a deal by the Japanese NPA in which she's supposed to help with the Kira case, a certain genius named "Mello" draws her attention. (y/n) soon learns that the cocky, short-tempered mafia boss is in reality a broken boy...