Lin Yuhe, an emotionally dull medical student, and Lu Nan, an unkind and decisive businessman, seem to have two parallel lives, but they intersect because of an unexpected agreement. An agreement, each getting what it needs, Lin Yuhe used a problem-solving method to get along with Lu Nan, but he did not expect that while he was waiting for the termination of the agreement, Lu Nan would sustain him in his cold and windy life. A sky with sunshine.
情感迟钝的医学生林与鹤和不近人情、杀伐果断的商人陆难，二人的人生看似是两条平行线，却因为一份意外的协议相交。一份协议，各取所需，林与鹤用解题般的方式与陆难相处，却没有想到，在他等待着协议终止的过程中，陆难会在他风寒天冷的人生里撑起一片洒下阳光的天。
情感迟钝的医学生林与鹤和不近人情、杀伐果断的商人陆难，二人的人生看似是两条平行线，却因为一份意外的协议相交。一份协议，各取所需，林与鹤用解题般的方式与陆难相处，却没有想到，在他等待着协议终止的过程中，陆难会在他风寒天冷的人生里撑起一片洒下阳光的天。
