This is the strange, action-packed story of the working life of Hirota, a contractor who deals with a mysterious natural phenomenon known as "Flow," his employee Chima-chan (who looks 12, but is really 35), and Shacho (a cat)! Whether it's a drying rack going for a walk by itself, a bridge sprouting four legs and moving around, or a staircase that was already long and steep suddenly getting even worse: if you see something unusual, it's probably Flow. Even Mother Nature makes mistakes sometimes.