As the twenty-first century comes in like a lion, Runa continues to use her cunning insight to save Japan's economy as the country's Little Majesty. Despite being a child, Runa operates on a global scale: and now, she's set her eyes on creating the famous Shinjuku shinkansen! But Runa's former life still looms over her, including the catastrophic events of the year 2001. How will she continue to save herself from her distant undoing in the wake of potential tragedy?