ㄕㄣshēnㄗㄞˋzàiㄘㄠˊㄧㄥˊcáoyíngㄒㄧㄣxīnㄗㄞˋzàiㄏㄢˋhàn

身在曹营心在汉
  1. 三國受禮不為所動心懷用以比喻堅守節操忠於比喻人心不專 勉強任職身在曹營心在漢終究」。

live in Cao camp but have the heart in Han camp (idiom.)​, to be somewhere while longing to be somewhere else