Zhou Shuang's life was shattered by the sudden appearance of a young boy who claimed to have come to Earth to find resonance that attracted him. Out of kindness and curiosity, Zhou Shuang let him live at home and called him Mu Yao. I thought that Mu Yao would leave after finding his resonance, but as Mu Yao searches for resonance, the bond between Mu Yao and Zhou Shuang becomes deeper and deeper...