Kairi Aria had been working for Scotland Yard for almost a year without incident. She had been very successful in remaining unnoticed by her coworkers until she is required for a case with the dubious Sherlock Holmes. A blundering, violent interaction throws the two together, resulting in one of the most dangerous cases Sherlock has ever come across. Sher/OC [TW: explicit sexual content, violence, alcohol abuse, sexual abuse, strong language - ADULT THEMED]