The heroine Kazuko Saito (KINOMOTO SAKURA Ando) in this film is a complete loser in the eyes of her family. At the age of 32, she is covered with fat and unkempt all day. She has no job, no income and no boyfriend. All I do all day is eat and sleep, and I play games when I am awake. To tell the truth, many times I want to live like this, but I can't always lie flat and feel at ease.
A son decided to stand on his own feet because she couldn't stand the rejection of her family. She got a cashier position in the 100-yuan supermarket she frequented every day. The appearance of boxer Keno Yusuke (played by Hirofumi Arai) had a great influence on Ziyi. They seemed to love each other very much, but Yuji didn't care about her at all and soon dumped her.
So she began to practice boxing. When she learned boxing, her life changed unexpectedly. Although she lost to her opponent in the boxing ring, she won herself. When Ziyi began to train boxing hard, her relationship with her family began to ease. When she met her father, she also taught her nephew boxing. She is also very talkative and takes the initiative to stop feeling inferior. A son seized the opportunity of rebirth, and no one can say that she lost.