Ranma is tricked by the black moon family into signing a contract. They cure all his curses and keep the by products, which turns out to be his female curse and the nekoken merged together in a new body. Ranma-chan becomes sailor Angerona and infiltrates the Senshi, while working on a way to free herself from the contract with Nabiki’s help. Sequel: Black Moon and Silence. (Sailor Moon Crossover.)