Satoshi Totsugawa, a 39-year-old employee at a small downtown advertising agency, is defined by his arrogance, pride, and deep-rooted insecurities. He constantly grumbles about earning less than his wife, being bossed around by a junior colleague, and concealing an affair with another designer. As a middle-aged man, Satoshi's days are filled with endless complaints. But when he is appointed chairman of his apartment building's residents' association, he becomes caught up in the machinations of its quirky tenants. Set against the backdrop of the towering, futuristic "Keihin Grand Solenase," this story offers a humorous and heartfelt look at modern human relationships.