Guangzao (Liansi Ishibashi) and Xiaonan (Ato Hai) are ordinary workers of the Kato group of the construction company, who jointly infringe upon the daughter and son of the boss who is still a virgin (Yahu). Hezi slowly felt for them from the initial humiliation and hesitated between the two. Three months later, Guangzao and Xiaonan drove out, picked up a mysterious red-haired girl (played by Junko Miyashita), took her back to her apartment, and the two were immersed in boundless joy. At the same time, Hezi was diagnosed with pregnancy and could not stand her father's rudeness. She hoped that filial piety man would be responsible to her and elope with her. The relationship between Guang and the redhead is subject to secular prejudice, and their happiness becomes wilder and wilder.