A quirky direct-ball manga artist VS a cold, ascetic law professor. Standing in for her sister's class, she gets caught on the spot by the handsome professor! What is more awkward is that she stole-drew a whole notebook of the man, who turned up being her neighbor. Manga artist Shen Zhiyi, while feeling guilty, cannot help but feel her heart flutter, and simply boldly starts chasing him: "Professor Gu, can I chase you?" Who would have known that Gu Zhiyu, who looks aloof and hard to flirt with, indulges her closeness again and again. She thought she was the one relentlessly pursuing, but she was held by the hand by him: "Zhizhi, this time switch to me chasing you, okay?" Turns out, the hardest person to chase had already fallen in love long ago.