When a new villain challenges Joker's position as biggest villain in Gotham, Joker decides not to take the competition lightly. Joker x OC

Sequal to "Whatever Doesn't Kill You Simply Makes You Stranger". Joker x OC

Whatever Doesn't Kill You Simply Makes You Stranger -> Don't Get Even...Get Mad -> Chemical Chaos. The third addition to the series, taking place fifteen years later in Gotham, and things have not changed one bit.