In 1944, during the war of resistance between the Kuomintang and the Communist Party, the Kuomintang captain Mu Liang Feng, who was a hunter, was ordered to lead a special team to destroy the secret weapon research institute of the Japanese army that developed cyanate grenades. With the help of Zhang Jue and Liu Xiao Xian, members of the underground party of the Communist Party of China, he has gone through many difficulties and dangers to complete the task. But during this period, his father, Mu Da Ming, who was a staunch Communist, was killed, and his wife, Liu Yan, was also persecuted and lost her memory. The deeply stimulated Mu Liang Feng arbitrarily believed that the Communist Party caused all this, and began to hate the Communist Party......

Cheng Hao is a dentist of a top dental clinic who helps others map out strategies to pursue girls after work. However, the love expert himself is still a bachelor. Luo Yue, a girl toughened by her heartbreaking love relationships, comes to see a dentist who happens to be Cheng Hao. The two who loathe each other start a romantic tug of war full of laughter. Cheng Hao’s partner, Zhang Mingyang is in love and asks Cheng’s help to woo a girl who used to be Cheng’s dream lover. Cheng Hao’s friend, Zou Beiye asks for Cheng’s idea to win a model’s heart. In the end, the trinity who face different issues in love find their soulmates and become mature men....

The tide of life pushes everyone forward. You can either face it head on or lie flat. This is an open-book exam with no standard answers. You can draw lessons from each other but can't cheat. Lin Shaotao and Jian Ai fell in love at first sight in college, didn't break up after graduation like most couples did, and managed to get married after years of ups and downs. Every stage of their love made people around them felt jealous. Therefore, it took Lin Shaotao by surprise that his family life broke down when he was trying to achieve a revolution in his industry in middle age. As for Jian Ai, she didn't tell anyone about her reason for the divorce. Jian Ai planned to leave Beijing for Dali. But because of her previous working experience, she was engaged by Liu Yingxia to solve the optimization crisis of VG China. Coincidentally, her ex-husband also got back to work in VG as operation manager. Their families and friends didn't want them to break up in the first place. Under this circumstance, they racked their brains and made every attempt to bring Lin and Jian together, Lin Shaotao needed to face various difficulties in the workplace, as well as deal with cooperation of Jian Ai and Liu Yingxia and tricks from his naughty friends at the same time. So, would Lin Shaotao get Jian Ai back or part from her forever? In the end, Lin Shaotao and Jian Ai, the couple who knew each other too well, came to the crossroads in their life again....