Elite detective "Tsubasa" possesses a unique background as the daughter of a man who developed advanced weaponry, using her exceptional skills and composure to solve countless difficult cases. However, one day she receives intelligence that her father has been captured, prompting her to infiltrate his secret hideout. What awaits her is a gruesome scene filled with torture and the sinister, inhumane conspiracy of monstrous perpetrators. The story captures her intense emotions and unwavering determination throughout each harrowing moment.