The crown princess Lune Renard is captured by a revolutionary army and condemned to death for supposedly hiding her past as a lowly orphan, throwing the nation into chaos. In truth, Lune never wanted to be crown princess. Her marquis adoptive father sold her to the crown prince when the family faced financial ruin. As Lune and her family face execution, she prays for deliverance. The Great Fox Spirit Reineke hears her wish and sends her back in time to avert this terrible fate, granting her fox ears that allow her to hear the voices of spirits.

Lune returns to the moment before her downfall, determined to save her people and find a happy ending for everyone. Her first challenge is winning over House Renard, the family that adopted her but always treated her coldly. She particularly fears her brother Liam, whom she believed hated her. However, the new timeline brings a shocking change: Liam now dotes on her at every opportunity. With her spirit companions and Liams unexpected affection, Lune begins her journey to change the future.

The setting is a fantasy kingdom where noble houses hold power and spirits influence the natural world. Lunes new ability to hear spirits becomes essential as she works to restore the Renard domain. The Great Fox Spirit Reinekes power grows stronger with the peoples faith, helping the territory recover from a monster crisis.

One year after her return, Lunes efforts show progress. The Renard domain slowly recovers, and Liam continues to fawn over his sister. With conditions stabilizing, Lune and her friends conceive a new project: a hot spring inn. With Lord Reinekes blessing, House Renard opens the onsen in town, creating a place where weary travelers and locals can rest in rejuvenating waters. Lune, Liam, and a companion named Baldr dedicate themselves to running the inn, seeking to bring prosperity to their territory through warmth, good food, and peaceful living.