The kana-shaped factory built by the previous president during the period of high economic growth, was now swallowed by the recession and was becoming a sinking ship. Maria, who was the president's daughter, takes over the management of the factory from her predecessor and strictly manages the company. The employee's dissatisfaction grows with the excessive severity and unreasonableness, and finally the dissatisfaction explodes with black passion! Maria is threatened by masked men and forced to do her best. Her revenge never ends...! !
