Synopsis: The Chameleon of "Nibiiro"

During the Economic Bubble, people of various ages and genders were swept up in a tumultuous environment. Amidst the prevailing competition for power, an individual, identified as a "woman," aimed to seek justice for past wrongs. Nevertheless, there was a startling revelation about this person - they had a tendency for ruthless killing, and most surprisingly, they were not actually a woman but rather a man.