Kazuyuki Yamamura works at a major advertising agency, and is the breadwinner of his family, which consists of himself, wife Miki, and daughter Rie. Kazuyuki's neighbor, Yusuke Sugio, however, leads a completely different life. The breadwinner of his family is his wife Shoko, who runs her own company. Yusuke is a so-called "at-home dad", and because of this, Kazuyuki considers him miserable and helpless.
