Dong Xiao, who has the ability to predict fragments, glimpses the future where the ascetic and rigorous statistics professor Wang Min will die alone. She tried to break into the changing trajectory of his life, but step by step she fell into his carefully woven calm examination. When Wang Min held her hand and whispered, "Once you break in, don't even think about leaving again." Dong Xiao was shocked to realize that she, who was trying to save her fate, might be stepping into a cage in the name of gentleness.
