As Japan stands on the precipice of transformation under the new emperor's decree to bury the past, Mi finds herself torn between the relentless march of progress and her loyalty to an old friend. When a trusted confidant arrives severely wounded after participating in a rebellion against the emerging order, Mi's world is thrown into turmoil.

Determined to heal her friend, Mi deploys all her formidable skills, but her impulsive decision to join him in his quest to overturn the new order unravels the life she had so carefully built. As the weight of her actions bears down upon her, she finds herself falsely imprisoned, facing the ominous specter of death.

In the midst of her darkest hours, Mi comes to realize the profound wisdom of an ancient proverb—that the past is the future of the present. The echoes of history reverberate through her captivity, revealing the intricate tapestry of consequences woven by her choices and those of the society she once called home.

In this gripping culmination of the series, Mi's resilience is put to the ultimate test. Join her as she navigates a landscape fraught with danger, betrayal, and political upheaval. As she confronts the consequences of her impetuous choices, the line between the past and present blurs, leaving her to grapple with the true price of redemption in a rapidly evolving Japan.