女主林清涵的爷爷危在旦夕，一些亲戚为了争夺家产，不惜以卑劣手段陷害女总裁林清涵，甚至牵涉到林氏集团的安危。然而，林清涵得到了上门女婿张玄的帮助，他化解了一场又一场的危机。外人嘲笑张玄是个只会家务的软饭男，但张玄并不在意，他只关心照顾好自己的老婆，其他的都是“小事儿”。亲戚们对林家的产业虎视眈眈，暗中勾结竞争对手，不断对林清涵和公司发起攻击。然而，张玄总是能发现危机，化险为夷，让林清涵逐渐认识到他的实力。最终，林清涵发现，原来张玄才是真正的大。

The grandfather of the heroine Lin Qinghan is at stake. In order to fight for the family property, some relatives did not hesitate to use despicable means to frame the female president Lin Qinghan, and even involved the safety of the Lin Group. However, Lin Qinghan got the help of his door-to-door son-in-law Zhang Xuan, and he resolved one crisis after another. Outsiders laughed at Henry Zhang as a soft rice man who only knew about housework, but Henry Zhang didn't care, he only cared about taking care of his wife, and everything else was "little things". The relatives coveted the Lin family's property, colluded with competitors secretly, and continued to attack Lin Qinghan and the company. However, Henry Zhang was always able to spot crises and turn them into disasters, which made Lin Qinghan gradually realize his strength. In the end, Lin Qinghan discovered that Henry Zhang was the real boss.