The zenith family, who led Onmyoji in Japan, had a feud with the assassination group Sakuratsuka. Anliu, the young master of the emperor family, is a handsome young man with a very kind heart. He and his twin sister Bei live together in the metropolis of Tokyo. The two brothers and sisters love each other and work hard together. Anliu uses his spiritual ability to solve problems for those who are troubled. During this period, they met the cheerful and handsome man Sakuratsuka Sakuro, a man with mysterious temperament who easily walked into the lives of the two siblings. In the course of a year, Anliu is extremely dependent on Xingshi Lang, but Beidu is worried about this man who seems to be hiding infinite secrets. It turned out that Xingshi Lang was the head of Sakuratsuka, the enemy of the royal family, and he was caught in the scene of the cherry blossom tree when he happened to be here. Because of the boundary, Xingshi Lang, who was unable to use his poisonous hand, erased the memory of Aung Liu and left a mark on the boy, agreeing that when the two met again, they would be together for a year. If Aung Liu could not change him within a year, Xing Shi Lang would kill Aung Liu. What will happen to their respective destinies at the end of a year?