主しゅう筋すじ

noun

close associates of the boss; inner circle

Refers to the people who are close to and trusted by the leader or head of a group, often in a somewhat old-fashioned or yakuza-related context. Not a common everyday word.

• 組くみ長ちょうの主しゅう筋すじにあたる者ものたちが集あつまった。

  The people who are close to the boss gathered.