Zhang Gongyu, the queen of the general family, naturally hates the struggle for power in the court, but is eager to make achievements. When he was fourteen years old, he condensed his own unique weapon - the seven-string sword harp. It was a strange dull gray blade, with the body of the piano as a sword and the body of the sword hiding the piano, like a piece of stubborn iron.
But his weapons are far from ordinary. On the day when all the seven strings are lit up, three forms will be awakened one after another: the ordinary form, the "battle form" that combines the sword and harp with colorful blades, and the "dark form" that combines all the negative emotions in the world - and the last one, even he himself knows nothing about.
Born on the Liangyi star, Yangyi creatures can strengthen themselves by cultivating Qi or devouring all things, but Yinyi creatures can only grow stronger by sucking in Yangyi creatures. In the ancient war, the Yinyi creatures were sealed underground and fell into a deep sleep. There are five continents, with Huafengzhou standing proudly in the center, and the four major tributary countries each occupying one side. However, chaos has arisen - the three kingdoms are plotting a rebellion, and the shadow of King Yinyi is dormant behind it.
He longs to walk his own path, not to live in temples or to look up to others. When he stepped into Shanhe Sheji Academy and stood side by side with seven companions carrying weapons of law, the strings of fate began to tremble. But when the seven strings chime together, what he has to face is not only the weapons of the Three Kingdoms and the Qiankun Seal of the Yinyi King, but also the sleeping eyes deep in his own weapon - and another self.
