耳目心腹

Explanation: Eyes and ears: that the detective news. Means of assisting the emperor's minister of state. Right-hand man and confidant metaphor 　　Usage: As object, attribute; that aides and cronies 　　Source: Qing Ji Yun "Notes of Rushiwowen": "If the good of their convenience, either to the eyes and ears confidants, no arms are not held back, giving others a handle those." Thesaurus:  listen and see right-hand man, Right-hand man Hinterland, right-hand man favorite