Gu Yanzhou, recognized as the flower of the school and the chairman of the student union, is secretly a jealous father who has no resistance to the younger students. Su Xiao pretends to be a well-behaved junior classmate in order to pursue love, but she frequently "turns over" in her daily interactions. While Gu Yanzhou calmly cut off the rotten peach blossoms around Su Xiao, he also induced this slow little white rabbit to step into his territory. From the "two-way secret love and mutual testing" in the campus period to "fighting side by side, life and death" in the social period. Amid lies and conspiracies, the two are each other's weakness and only armor.