OVA
Description
Matsuzō Matsuno, the father of the Matsuno sextuplets, appears consistently as a short, plump man with round eyes, a large nose, buckteeth, and a curly mustache. His hair is closely shaved on the sides, and he typically wears suits or casual long-sleeved tops and pants. While his design remains largely unchanged, later media flashbacks show him without the mustache in his youth.

Working as a salaryman, Matsuzō struggles persistently to balance his job and chaotic family life. He often appears overwhelmed and proves ineffectual at disciplining his unruly sons, despite occasional attempts to assert authority, exhibiting a blend of frustration and resigned acceptance. His recurring financial misfortune involves losing work paychecks, triggering family crises or forcing his children to seek work; these lost checks are sometimes stolen by characters like Iyami, worsening their hardships.

Historically, Matsuzō owned a liquor shop named "Mimatsuya" before the sextuplets' birth, as established in early manga and guidebooks. He abandoned this business for better-paying salaried work to support his growing family, though later adaptations retconned this detail, showing him moving directly into the family home without the shop's presence. He remains a devoted fan of the Chunichi Dragons baseball team.

Matsuzō endures constant friction with his sons, who disregard his authority. His marriage to Matsuyo involves shared exasperation over their children's behavior, though conflicts between them occasionally arise, such as a depicted divorce threat that the sextuplets attempt to mitigate. His interactions with side characters like Iyami vary, ranging from adversarial (when Iyami steals his checks) to incidental.

Serving as a consistent comedic foil across original manga, anime adaptations (1966, 1988), and modern reboots, his role as the beleaguered patriarch remains unchanged, with no significant evolution in personality or circumstances. Minor trivia includes an alternate name ("Matsutaro") in one live-action adaptation due to production oversights.