气谊相投

氣誼相投
qìyìxiāngtóu

to have forged a bond with each other on the basis of mutual aspirations and mutual goodwill

Wiktionary

Entry Composition

1 气 qì
  1. gas; air
  2. smell
  3. weather
  4. to make angry; to annoy; to get angry
  5. vital energy; qi
2 谊 yì
  1. friendship
  2. also pr. yí
3 相投 xiāngtóu to share common interests or views; to get along well; congenial