20XX ... There was a global conflict, and violent crime was rampant in the second Tokyo city, which was subsequently rebuilt. Tsukumori Mio, the female chief of Tsukima City, judges evil by law as a female chief during the day. At night, she was dressed in a special enhanced suit left by her late husband, mercilessly exterminating evil that could not be brought to justice, and protecting the security of Tsukima City. Wearing an enhanced suit, she was known as the Darkening Daruk in the streets, and was charismatic and popular with the citizens. On the other hand, she was very aloof and depressible to the evil that prevailed in the city. A small circus troupe comes to town. The circus troupe was suspected of being involved in a series of kidnappings. The corrupt organization is unreliable, and she becomes Daruk and infiltrates the circus troupe. However, Daruk, who was caught off guard, fell into the trap of a circus troupe and was made into a spectacle. ［BAD END］