行こう為い者しゃ

noun

doer; performer; perpetrator

Refers to the person who carries out an action, often in legal, ethical, or formal contexts. Can be neutral or negative depending on the deed.

• 犯はん罪ざいの行こう為い者しゃはまだ特とく定ていされていない。

  The perpetrator of the crime has not yet been identified.

• この計けい画かくの行こう為い者しゃは誰だれですか。

  Who is the doer of this plan?