Zhuang Wu's Broken Sword

She has a heart that lives in a coral palace deep in the blue sea. It is pure, kind, and flawless. He also has a heart, brought back from the chaotic battlefield and wandering around the world. Her heart was cut out, setting a curse on the world. Mermaid Princess × Jianghu Killer This is a contest, using his superb swordsmanship to compete with beauty and kindness