TV-Series
Description
Ichimatsu Matsuno is the fourth of six identical sextuplet brothers. His name incorporates "ichimatsu" but uses the kanji "一" (one) first, aligning with the brothers' numerical naming; he dislikes misspellings using "市松" (checkered pattern). As a child, he stood out as the most serious, intelligent, and strong-willed among his brothers, though his academic skills remained modest compared to non-sextuplet peers. He demonstrated greater endurance and practicality, saving more money—sometimes up to 400 yen. He showed patience and kindness toward younger children like Chibita, acting as an older brother figure in stories such as "Chibita Wants a Brother," though he also participated in bullying Chibita elsewhere. He could be ruthless, like defeating Chibita with a steamroller in "The Simple Smog Family."
Physically, his appearance evolved throughout the manga. He initially had a shorter stature, round eyes, an upturned nose, and a low-set mouth, later becoming taller and slimmer while retaining a round face and large eyes. He shared his brothers' bowl-cut hairstyle and uniform, making visual distinction difficult without context or color coding (orange in some reprints).
He most frequently partnered with Jyushimatsu, with roughly eight confirmed manga appearances as a duo—selling shaved ice or guarding hideouts. Less commonly, he interacted with Todomatsu or Choromatsu. His relationship with Osomatsu was strained, marked by jealousy—such as when Osomatsu gave Totoko a sweet potato—and occasional exploitation, though he generally participated in the group's mischief.
Adult depictions vary significantly across media: "Osomatsu-kun after 30 Years" shows him at 40 with slicked hair, thick glasses due to poor eyesight, and jealousy of Osomatsu's youthful look. A 1988 anime special depicts him at 50 as short and pudgy with a pompadour. A 1993 beer ad presents him at 35 with a bowl cut, mustache, and businessman attire, enjoying cigars and beer. A TV Magazine chapter portrays him at 50 as bedridden and sickly, with graying hair and dark circles under his eyes.
In the "Osomatsu-san" spin-off, his adult persona embodies social withdrawal and low self-confidence. He adopts a "lone wolf" identity, prefers cats to people, and wears purple hoodies and sweatpants. His heart is metaphorically depicted as fragile glass bearing a "fragile" sticker. The "Osomatsu-san" movie reveals his high school self was a popular, outgoing figure nicknamed "Ichi," a persona maintained through intense effort. His present cynicism and violence stem from this facade collapsing, leading to shame and a suicide attempt upon encountering his past self. He struggles to mimic his former sociability, often exhausting himself during interactions.
His adult relationships remain complex. He maintains closeness with Jyushimatsu, supporting him even in uncomfortable situations like serving as baseball bat weight. Conversely, he feels intimidated by Choromatsu's pursuit of normalcy and resents Karamatsu, possibly due to envy of his confidence. He avoids social connections outside his family, reflecting unresolved insecurities.
Physically, his appearance evolved throughout the manga. He initially had a shorter stature, round eyes, an upturned nose, and a low-set mouth, later becoming taller and slimmer while retaining a round face and large eyes. He shared his brothers' bowl-cut hairstyle and uniform, making visual distinction difficult without context or color coding (orange in some reprints).
He most frequently partnered with Jyushimatsu, with roughly eight confirmed manga appearances as a duo—selling shaved ice or guarding hideouts. Less commonly, he interacted with Todomatsu or Choromatsu. His relationship with Osomatsu was strained, marked by jealousy—such as when Osomatsu gave Totoko a sweet potato—and occasional exploitation, though he generally participated in the group's mischief.
Adult depictions vary significantly across media: "Osomatsu-kun after 30 Years" shows him at 40 with slicked hair, thick glasses due to poor eyesight, and jealousy of Osomatsu's youthful look. A 1988 anime special depicts him at 50 as short and pudgy with a pompadour. A 1993 beer ad presents him at 35 with a bowl cut, mustache, and businessman attire, enjoying cigars and beer. A TV Magazine chapter portrays him at 50 as bedridden and sickly, with graying hair and dark circles under his eyes.
In the "Osomatsu-san" spin-off, his adult persona embodies social withdrawal and low self-confidence. He adopts a "lone wolf" identity, prefers cats to people, and wears purple hoodies and sweatpants. His heart is metaphorically depicted as fragile glass bearing a "fragile" sticker. The "Osomatsu-san" movie reveals his high school self was a popular, outgoing figure nicknamed "Ichi," a persona maintained through intense effort. His present cynicism and violence stem from this facade collapsing, leading to shame and a suicide attempt upon encountering his past self. He struggles to mimic his former sociability, often exhausting himself during interactions.
His adult relationships remain complex. He maintains closeness with Jyushimatsu, supporting him even in uncomfortable situations like serving as baseball bat weight. Conversely, he feels intimidated by Choromatsu's pursuit of normalcy and resents Karamatsu, possibly due to envy of his confidence. He avoids social connections outside his family, reflecting unresolved insecurities.