My Daughter-In-Law Is Very Busy

She came, she died, and she promised her to fulfill her last wish so that she could leave peacefully. Quietly fighting against her concubine, guarding against her mother, wooing old people to serve her, and clinging to the powerful to protect herself, everything is getting on track. Suddenly, an old friend comes from the south, and changes occur one after another. Can she stand firm in the midst of all these conflicts, find a pure land, face the sea, and bloom with spring flowers?