OVA
Description
Osomatsu Matsuno stands as the eldest among six identical brothers in the Matsuno family. His name originates from the Japanese word "osomatsu," signifying "poor" or "lousy."
In the original manga and 1988 *Osomatsu-kun* anime series, Osomatsu is typically depicted as a 10-year-old, occasionally aged to 12. He wears a standard uniform coat with three buttons, light pants, and running shoes, transitioning to short sleeves and dark shorts in summer. His distinctive appearance features a bowl-cut hairstyle with two curled strands at the back, larger eyes set close together, and a smaller rounded nose. Frequent dental issues, including multiple cavities, serve as a key visual differentiator from his brothers. He stands 150 cm tall and weighs 46 kg, presenting as relatively tall and slim for his age yet strongly built, though later artistic portrayals showed him shorter and chubbier.
As a child, Osomatsu assumes the role of leader among his brothers, displaying a fiery, self-confident, and pushy personality. He is a notorious troublemaker who drags his siblings into schemes ranging from mischievous pranks to outright bullying. Despite his hooligan tendencies, his smooth attitude makes him well-liked. He reigns as the strongest fighter among the sextuplets and exhibits gluttony and greed, especially concerning food and money, though he rarely possesses savings. His leadership proves unreliable; he readily betrays his brothers for personal gain, such as abandoning them for adoption by a wealthy couple or sabotaging them to win Totoko's affection. However, he occasionally reveals vulnerability and guilt, shaving his head in repentance after causing trouble or expressing loneliness when separated from his family. He harbors conflicting feelings about his siblings, sometimes wishing them dead to become an only child while simultaneously feeling responsible for their well-being. Rivalries with characters like Chibita and Iyami fluctuate between antagonism and uneasy cooperation. He dislikes green peppers, has blood type A, and faces ridicule for bedwetting, which others use as blackmail.
In the 1990 OVA *Osomatsu-kun: Iyami wa Hitori Kaze no Naka*, no specific details about Osomatsu's role or development are provided.
In the 2015 spin-off *Osomatsu-san*, Osomatsu appears as an adult NEET (Not in Education, Employment, or Training) with minimal physical changes from his late teens, retaining an upturned nose and a wide, toothy grin. His hair is a softer black with red-tinted highlights, and he is color-coded as red, often seen in red-themed clothing or his standard Matsu parka. His core personality persists from childhood: a self-proclaimed leader, crude and shameless, possessing a "mentality of an elementary school sixth-grader." As an adult, he becomes more laid-back and unmotivated, acting solely for instant gratification. He engages in gambling (horse racing, pachinko), steals his brothers' savings to fund it, and reacts destructively to losses. He makes lewd remarks and stalks Totoko, though he faces retaliation. Despite openly resenting being a sextuplet and desiring to be an only child, he feels an ironic responsibility toward his brothers, though his actions frequently worsen their situations. He occasionally displays a softer side during emotional crises but typically reverts to causing trouble. He is associated with the red panda as an animal motif, and his "self-consciousness" manifests as a small, dirty red ball, reflecting his unrefined nature.
Across all media, Osomatsu evolves from an assertive yet flawed child leader to an adult whose traits amplify through stagnation, while his core identity—charismatic yet unreliable, selfish yet intermittently loyal—remains consistent.
In the original manga and 1988 *Osomatsu-kun* anime series, Osomatsu is typically depicted as a 10-year-old, occasionally aged to 12. He wears a standard uniform coat with three buttons, light pants, and running shoes, transitioning to short sleeves and dark shorts in summer. His distinctive appearance features a bowl-cut hairstyle with two curled strands at the back, larger eyes set close together, and a smaller rounded nose. Frequent dental issues, including multiple cavities, serve as a key visual differentiator from his brothers. He stands 150 cm tall and weighs 46 kg, presenting as relatively tall and slim for his age yet strongly built, though later artistic portrayals showed him shorter and chubbier.
As a child, Osomatsu assumes the role of leader among his brothers, displaying a fiery, self-confident, and pushy personality. He is a notorious troublemaker who drags his siblings into schemes ranging from mischievous pranks to outright bullying. Despite his hooligan tendencies, his smooth attitude makes him well-liked. He reigns as the strongest fighter among the sextuplets and exhibits gluttony and greed, especially concerning food and money, though he rarely possesses savings. His leadership proves unreliable; he readily betrays his brothers for personal gain, such as abandoning them for adoption by a wealthy couple or sabotaging them to win Totoko's affection. However, he occasionally reveals vulnerability and guilt, shaving his head in repentance after causing trouble or expressing loneliness when separated from his family. He harbors conflicting feelings about his siblings, sometimes wishing them dead to become an only child while simultaneously feeling responsible for their well-being. Rivalries with characters like Chibita and Iyami fluctuate between antagonism and uneasy cooperation. He dislikes green peppers, has blood type A, and faces ridicule for bedwetting, which others use as blackmail.
In the 1990 OVA *Osomatsu-kun: Iyami wa Hitori Kaze no Naka*, no specific details about Osomatsu's role or development are provided.
In the 2015 spin-off *Osomatsu-san*, Osomatsu appears as an adult NEET (Not in Education, Employment, or Training) with minimal physical changes from his late teens, retaining an upturned nose and a wide, toothy grin. His hair is a softer black with red-tinted highlights, and he is color-coded as red, often seen in red-themed clothing or his standard Matsu parka. His core personality persists from childhood: a self-proclaimed leader, crude and shameless, possessing a "mentality of an elementary school sixth-grader." As an adult, he becomes more laid-back and unmotivated, acting solely for instant gratification. He engages in gambling (horse racing, pachinko), steals his brothers' savings to fund it, and reacts destructively to losses. He makes lewd remarks and stalks Totoko, though he faces retaliation. Despite openly resenting being a sextuplet and desiring to be an only child, he feels an ironic responsibility toward his brothers, though his actions frequently worsen their situations. He occasionally displays a softer side during emotional crises but typically reverts to causing trouble. He is associated with the red panda as an animal motif, and his "self-consciousness" manifests as a small, dirty red ball, reflecting his unrefined nature.
Across all media, Osomatsu evolves from an assertive yet flawed child leader to an adult whose traits amplify through stagnation, while his core identity—charismatic yet unreliable, selfish yet intermittently loyal—remains consistent.