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Osamu Nagayama(Nagayama Osamu, 長山 治) is a male third-grade character from the Japanese manga and anime series 'Chibi Maruko Chan'.

AppearanceEdit

PersonalityEdit

Hobbies & TalentsEdit

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ClassmatesEdit

TriviaEdit

  • Nagayama-kun's favorite foods are spaghetti and korokke.
  • Nagayama-kun's most prized possession is a telescope he personally saved up to ¥50,000 to buy.