Ankoku Marimokan - Sneak in Destroy Version 1.0 (English)

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Renka, the heiress to her family's dark business, is approached with a risky request:
break into the headquarters of a criminal organization and steal a top secret disk from the bottom floor.
She'll be surrounded by heinous villains disguised as a guard.
Renka says "no problem", grabs her sword, and takes the mission.​