Matsuzō Matsuno is the father of the six Matsuno brothers in the anime Mr. Osomatsu. He is a long-suffering and somewhat foolhardy parent who, despite his best efforts to maintain authority over his adult sons, is frequently left helpless by their chaotic behavior. As the only apparent source of income in the household, he serves as the family's primary breadwinner, working to support his six unemployed sons who continue to live at home well into their twenties. His personality is generally mild and hardworking, though he can be prone to making decisions that are not always well thought out, such as having a bad habit of dropping or losing his work paychecks. He is often depicted as trying to be strict when necessary, but his attempts at discipline are rarely effective against the combination of his sons' laziness and his own easygoing nature. Despite his frustrations, there is an underlying fondness for his family, and he can show a whimsical or playful side on occasion. His motivations are largely centered on providing stability for the household, even as he privately wishes his sons would find employment and become more independent. He has a key relationship with his wife Matsuyo, with whom he has experienced marital strain severe enough to bring them close to divorce, only for the two to reconsider after observing their sons' current situation. His interactions with his sons are limited compared to his wife, as his screen time in the series is relatively sparse; he is often seen working or reacting in the background to the latest disturbance caused by the sextuplets. Matsuzō does not undergo any significant character development or transformation, remaining a steady, if somewhat resigned, paternal figure throughout the story. He does not possess any special or notable abilities; his primary role is that of an ordinary, hard-working father trying to manage an extraordinary household.