Ui no Hana

Born into a prestigious family of shamans who exorcise ghosts and protect the dynasty, Feng Lingyao lacks talent for shamanism and harbors complicated feelings for his childhood friend and fiancé, Dong Yueji, a rare shaman. Meanwhile, Lingyao is tasked with supervising Yueli and accompanies her to Yangliu Island to exorcise ghosts...! An occult Chinese demon-exorcising fantasy about a beautiful shaman and a strict young prince begins!

(Source: Kadokawa, translated)