Physics scumbag Sang Wanning casually drags the cold-blooded genius senior Qin Zhanxiao to pretend to be her boyfriend in order to avoid confessing, but unexpectedly starts an "agreed love" that is too sweet. From exclusive tutoring lessons and ambiguous flirting, to raising a cat for her and protecting her against rumors, Sang Wanning gradually discovered that this seemingly accidental encounter was actually a gentle approach that Tan Zhanxiao had been secretly in love with for eight years and had planned for a long time.