The mother-in-law died innocently.
She tried to find out the truth, but her father ignored her.
On the one hand, he loved and indulged her, but on the other hand, he ignored her request.
Frustrated, she chose to leave the imperial city.
After several years of separation, when the crown prince's position was established, she chose to return to the imperial city at her father's birthday banquet.
She has no intention of fighting for power. This time, she just wants to seek justice for her mother and concubine.
Intent: power struggle, ancient saying