1.
stagehand (in traditional theater); kuroko
A person dressed entirely in black who assists performers on stage in kabuki or bunraku theater, conventionally treated as invisible by the audience.
黒子が小道具を運ぶ。
The stagehand carries props.
歌舞伎の黒子は全身黒い衣装を着ている。
Kabuki stagehands wear entirely black costumes.
舞台の上では黒子は「見えない」ことになっている。
On stage, the stagehands are conventionally treated as invisible.
2.
behind-the-scenes person; someone who works unseen
By extension, someone who operates behind the scenes to make things happen, often without receiving public credit.
彼はこのプロジェクトの黒子だ。
He's the one working behind the scenes on this project.
政治の黒子として暗躍する。
To operate behind the scenes in politics.
成功の裏には多くの黒子たちの努力がある。
Behind every success, there are the efforts of many unsung contributors.
Originally a kabuki theater term. The 黒子 wears a full black costume including a hood, based on the convention that black represents invisibility on the traditional Japanese stage. This theatrical concept has become a widely used metaphor in everyday Japanese.
COMMON COLLOCATIONS:
- 黒子に徹する: to commit to working behind the scenes
- 黒子役: behind-the-scenes role
- 政治の黒子: political operator behind the scenes
NOTE ON READING:
The same kanji 黒子 can also be read ほくろ, meaning "mole" (the skin mark). Context makes the reading clear.
CULTURAL CONTEXT:
The convention of "invisible" stagehands reflects a unique aspect of Japanese theater aesthetics — the audience agrees to ignore their presence, even though they are in plain sight. This cultural concept extends to the figurative use.