主人公（しゅじんこう、shujinkou）
- protagonist

The Japanese word 主人公 (shujinkou) primarily translates to "protagonist," "main character," or "hero" in English. It refers to the central character of a story, play, movie, or any narrative work. This individual drives the plot, experiences the key events, and the story usually revolves around them. The term implies importance and centrality to the narrative. It also refers to the male lead. The female lead is ヒロイン (hiroin).

⚫︎その小説の主人公は、勇敢な騎士です。 Translation: The protagonist of that novel is a brave knight. ⚫︎この映画の主人公は、問題を解決するために努力します。 Translation: The main character in this movie struggles to solve the problems. ⚫︎彼女は、主人公になりたいと夢見ています。 Translation: She dreams of becoming the main character.

You can use 主人公 when discussing the central figure in any form of storytelling. ⚫︎It's common when talking about books, movies, anime, manga, and plays. ⚫︎When analyzing or summarizing a story, identifying the 主人公 is essential. ⚫︎You can use it both formally and informally, though more formal language might be preferable in some settings.

⚫︎The word is typically written with the kanji 主人公. ⚫︎The reading is しゅじんこう in hiragana. ⚫︎There are no variations in okurigana. ⚫︎主人公 is not generally written in katakana.

⚫︎メインキャラクター (mein kyarakutaa) - "main character" (loanword from English) ⚫︎主人公人物 (shujinkou jinbutsu) - "main character; protagonist" ⚫︎ヒーロー (hiiroo) - "hero" (loanword from English), but sometimes used more broadly to refer to the protagonist.

⚫︎敵役 (tekiyaku) - "antagonist," "villain" ⚫︎脇役 (wakiyaku) - "supporting role," "minor character"

このアニメの主人公は、特別な力を持っています。 ・Translation: The protagonist of this anime has special powers. ・Explanation: This sentence describes the 主人公 of an anime and highlights a characteristic (having special powers) often associated with protagonists.

物語の主人公は、困難を乗り越えて成長していきます。 ・Translation: The protagonist of the story overcomes difficulties and grows. ・Explanation: This sentence depicts the typical development of a 主人公 who faces challenges and evolves throughout the narrative.

The word 主人公 is composed of two kanji: 主 (shu) meaning "main," "principal," or "master," and 人 (jin/hito) meaning "person" or "character," and 公 (kou) which means "public". Together, they literally mean "main person of public." This word highlights the central role a character plays in a story.