The Whistle
Huaniang, the high-ranking inner palace consort who lives at Yuanqian Palace, comes to Ye Ming Palace. She wants to know why her flower whistle will not blow. Flower whistles are hung from the eaves of buildings at the end of winter to mourn those who passed away the previous year. Allegedly the dead return on winds announcing the coming of spring to blow the whistles. Huaniang is concerned that her whistle has not blown since she lost her lover Ou Xuanyou. Shouxue complies with her request and attempts to summon the soul of Ou Xuanyou so she can speak to him.
Aired 15/10/2022EP 3 - The Whistle

Raven of the Inner Palace
Deep within the inner palace lives a special consort who does not serve the emperor despite her position as a consort. She is known as the Raven Consort. People who have seen her say she looks like an old woman, while others say she looks like a young girl. Stories tell of her use of mysterious arts, and how she can take on any request, be it death curses or finding lost things. Koushun, the current emperor, goes to visit the Raven Consort with that intention. Without knowing that their fated meeting will become a taboo that will overturn history.
(Source: Shikkarito)