面従腹背

めんじゅうふくはい

noun

•

pretending to obey but secretly betraying (someone)(yojijukugo)

面	mask, face, features, surface
従	accompany, obey, submit to, comply, follow, secondary, incidental, subordinate
腹	abdomen, belly, stomach
背	stature, height, back, behind, disobey, defy, go back on, rebel

もんく

い

。

きみ

たいど

めんじゅうふくはい

If you have a complaint let me hear it. There's a difference between superficial obedience and honest loyalty you know