Lin Rui is a recognized genius in the tennis world, but he has a cold personality. Fans love his skills but hate his pale face. Until one day, he met his "harmless" assistant Cheng Xiaoyu at the club - she was as gentle as water when she handed him a towel, but turned around and commented on the forum that his serving posture was like a "constipated sloth". What's even more outrageous is that Lin Rui accidentally discovered her dual identity. Instead of exposing it, he secretly used his football skills to fish for law enforcement and forced her to take off her vest. From then on, the tennis court became a playground for two drama stars, one pretending to be cold but actually suppressing his laughter, and the other switching personalities wildly and almost falling apart. But when Cheng Xiaoyu's waistcoat fell off more and more, Lin Rui discovered: This girl has more than two sides, she is basically a "personality blind box"!