Ruan Ting'an, a chemistry teacher, lives alone in Huaisui and runs a small flower shop. He looks cold and tough, but he shows a soft and waxy side when it comes to cats. His old friend Ji Yanshu often comes to keep him company, and he also brings the cold and gentle doctor Shangguanyu with him. Shangguanyu hides her feelings, and the ragdoll cat in her family just pokes her preference. With the help of their best friend Shen Li, the two slowly let go of their guard and fell in love with each other. Under the calm fireworks, a thousand-year-old jade hides the fateful bond between the four of them across reincarnation.
Concept: Hidden under the hard shell is a soft heart, and the tenderness running in both directions in the fireworks of the world are all the fateful redemption led by ancient jade to transcend reincarnation.