Qishani is a posthumous child, and the most important person in her life is her mother's good friend, her Aunt Qiu.
By chance, she learned that besides her mother, her father also loved a woman named Yue deeply during his lifetime. During the visit and investigation of Yue's life experience, Qishani gradually understood the true meaning of love that Aunt Qiu once told her, and finally opened her heart to her mother.