While facing the task of mass-producing new products, Yoon Min-joo (played by Lee Jong-won) still found time to spend sweet time with his lover Chae Yong-joo (played by Kim Se-jeong).Even though he looked serious and distressed at first, he immediately smiled when he saw Chae Yong-joo.However, the sweet moment was fleeting, and Yin Minzhu and Cai Yongzhu had a fierce confrontation over the release of new products. 

When there is a problem with the quality of the beer, a conflict of values ​​arises between Yoon Min-joo, who values ​​the taste, and Chae Yong-joo, who values ​​the promise with wholesalers.Yoon Min-joo, who is usually a gentle boyfriend, insists on being a brewmaster when it comes to beer, showing his unique charm and courage.

Yoon Min-ju, who has always been uncompromising on beer issues, was the first to apologize after the end of the Cold War.He held the hand of Cai Longzhu who proposed "temporary separation" and firmly expressed his determination not to break up.