Movie
Description
Ichimatsu Matsuno is the fourth son of the Matsuno sextuplets. His name originates from "市松" (meaning "checkered pattern"), but substitutes the first kanji with "一" (one), following a common boy-naming convention. He dislikes misspellings of his name using the checkered kanji.
As a child, he stood out as the most serious and strong-willed among his brothers. Though not academically exceptional, he displayed marginally higher intelligence and practicality, often saving more money than the others. He exhibited physical endurance, such as nearly reaching a building's summit while chasing Chibita before collapsing. While prone to joining his brothers' mischief, he occasionally showed kindness to younger children but could also display violence, exemplified by running over Chibita with a roadroller. He frequently paired with Jyushimatsu in activities, with approximately eight confirmed instances in the manga.
During his teenage years (depicted in a movie), he adopted a popular, outgoing persona nicknamed "Ichi," masking his insecurities and attempting to differentiate himself from his brothers. Maintaining this facade caused social exhaustion. A pivotal confrontation occurred when his adult self advised his teenage self to "be himself"—this inadvertently reinforced his withdrawal and shaped his adult personality. The encounter triggered intense self-disgust, leading his adult self to attempt suicide and try to murder his younger self before being restrained.
In adulthood, he lives as a reclusive NEET, deemed the family's "lone wolf." He avoids human interaction, preferring cats, and his brothers perceive him as incapable of friendship. His appearance features half-drooped eyes, slightly ruffled hair, and a hunched posture. He typically wears a purple hoodie, blue sweatpants with a white stripe, and purple sandals, often accessorized with a surgical mask. Despite his aloof exterior, he harbors deep sensitivity; his heart is metaphorically depicted as fragile glass with a "fragile" sticker. Struggling with self-confidence and emotional expression, he adopts a dark, cold persona for protection. Attempts to socialize—like imitating his high school self's high-fiving—result in mental and physical collapse.
His brotherly relationships vary: he shares a close bond with Jyushimatsu, voluntarily enduring discomfort to support him (e.g., serving as added weight on a baseball bat). Conversely, Choromatsu's efforts to appear "normal" and pursue employment intimidate him, creating awkwardness despite both being middle sons; they share no common interests.
Future depictions show divergent paths: at age 40, he sports slicked hair, thick glasses, and a businessman aesthetic, mocked as "Glasses" by Osomatsu. At age 50, he appears short, pudgy, and balding. A separate "40 Years Later" scenario portrays him bedridden, sickly, and covered in a futon scribbled with his name, with gray hair and dark circles under his eyes—his brothers draw fake eyes on him while he sleeps. A beer ad scenario at age 35 shows him retaining his bowl-cut hairstyle but adding a mustache, wearing a suit while enjoying cigars and beer.
As a child, he stood out as the most serious and strong-willed among his brothers. Though not academically exceptional, he displayed marginally higher intelligence and practicality, often saving more money than the others. He exhibited physical endurance, such as nearly reaching a building's summit while chasing Chibita before collapsing. While prone to joining his brothers' mischief, he occasionally showed kindness to younger children but could also display violence, exemplified by running over Chibita with a roadroller. He frequently paired with Jyushimatsu in activities, with approximately eight confirmed instances in the manga.
During his teenage years (depicted in a movie), he adopted a popular, outgoing persona nicknamed "Ichi," masking his insecurities and attempting to differentiate himself from his brothers. Maintaining this facade caused social exhaustion. A pivotal confrontation occurred when his adult self advised his teenage self to "be himself"—this inadvertently reinforced his withdrawal and shaped his adult personality. The encounter triggered intense self-disgust, leading his adult self to attempt suicide and try to murder his younger self before being restrained.
In adulthood, he lives as a reclusive NEET, deemed the family's "lone wolf." He avoids human interaction, preferring cats, and his brothers perceive him as incapable of friendship. His appearance features half-drooped eyes, slightly ruffled hair, and a hunched posture. He typically wears a purple hoodie, blue sweatpants with a white stripe, and purple sandals, often accessorized with a surgical mask. Despite his aloof exterior, he harbors deep sensitivity; his heart is metaphorically depicted as fragile glass with a "fragile" sticker. Struggling with self-confidence and emotional expression, he adopts a dark, cold persona for protection. Attempts to socialize—like imitating his high school self's high-fiving—result in mental and physical collapse.
His brotherly relationships vary: he shares a close bond with Jyushimatsu, voluntarily enduring discomfort to support him (e.g., serving as added weight on a baseball bat). Conversely, Choromatsu's efforts to appear "normal" and pursue employment intimidate him, creating awkwardness despite both being middle sons; they share no common interests.
Future depictions show divergent paths: at age 40, he sports slicked hair, thick glasses, and a businessman aesthetic, mocked as "Glasses" by Osomatsu. At age 50, he appears short, pudgy, and balding. A separate "40 Years Later" scenario portrays him bedridden, sickly, and covered in a futon scribbled with his name, with gray hair and dark circles under his eyes—his brothers draw fake eyes on him while he sleeps. A beer ad scenario at age 35 shows him retaining his bowl-cut hairstyle but adding a mustache, wearing a suit while enjoying cigars and beer.