The Grand Duke’s Beloved Granddaughter is an emotionally gripping story filled with revenge, redemption, and second chances. It follows Mirabel, a fierce mercenary whose mother, Cornelia, lived a life of sorrow after severing ties with her noble family, the Grand Dukedom of Citron. Cornelia’s distress over her failed attempts to reconnect ultimately led to her demise, fueling Mirabel’s desire for vengeance.
Determined to make her grandfather, the Grand Duke, pay for her mother’s suffering, Mirabel sets off on a mission—only to realize that he, too, was a victim of betrayal. Before she can act on this revelation, she is murdered by the real villain. However, instead of facing the afterlife, she finds herself back in her nine-year-old body, with her mother still alive.
With a rare second chance at life, Mirabel must change the future, protect her mother, and expose the true mastermind behind their suffering. But as she reconnects with the family she never knew, she finds herself torn between her mission and the warmth of the love she was once denied.
Plot of The Grand Duke’s Beloved Granddaughter

Mirabel grew up as a mercenary, never knowing the warmth of a noble family. Her mother, Cornelia, had left behind the Grand Dukedom of Citron, believing it would bring her peace, but instead, she lived a life filled with regret and sorrow. When she passed away, Mirabel swore to uncover the truth and make the person responsible pay.
Tracking down her grandfather, Grand Duke Criton, Mirabel initially assumes he is the cause of her mother’s suffering. However, after discovering the truth, she is betrayed and killed by the real villain. Instead of dying, she wakes up as a child again, with a rare opportunity to change everything.
This time, Mirabel refuses to let history repeat itself. She sets out to protect her mother, prevent the betrayals, and expose the true enemy before tragedy strikes again. But will her second chance be enough to rewrite fate?
The Grand Duke’s Beloved Granddaughter Chapter 66 Release Date and Time

The Grand Duke’s Beloved Granddaughter Chapter 66 is set to be released on Wednesday, March 12, 2025. Below are the release times across different time zones:
- Japan Standard Time (JST): Wednesday, March 12, 2025, at 12:00 AM
- India Standard Time (IST): Tuesday, March 11, 2025, at 8:30 PM
- Greenwich Mean Time (GMT): Tuesday, March 11, 2025, at 3:00 PM
- Philippines Standard Time (PHT): Tuesday, March 11, 2025, at 11:00 PM
- Korean Standard Time (KST): Wednesday, March 12, 2025, at 12:00 AM
- Eastern Time (EST): Tuesday, March 11, 2025, at 10:00 AM
- Central Time (CST): Tuesday, March 11, 2025, at 9:00 AM
- Mountain Time (MST): Tuesday, March 11, 2025, at 8:00 AM
- Pacific Time (PST): Tuesday, March 11, 2025, at 7:00 AM
- Australian Capital Territory (ACST): Wednesday, March 12, 2025, at 2:00 AM
Where to Read The Grand Duke’s Beloved Granddaughter Chapter 66
You can read The Grand Duke’s Beloved Granddaughter Chapter 66 on official platforms such as Naver Webtoon for the original Korean version and WebComics or Tapas for English translations. Supporting the official release helps the creators continue their work and ensures the story reaches more readers worldwide.