In December 2002, when no one celebrates his birthday, he suddenly realizes that his life is too unsatisfactory, and begins to feel anxious. Thus, he desires to be respected and takes the opportunity to change his life. After a series of twists and turns, Kurosawa wins the trust of his younger coworkers, but new problems keep following him one after another, and unexpectedly, he has to go through all sorts of carnage to earn his title of "the strongest."