かんたんあいてらす

らす

  1. expressions (phrases, clauses, etc.), Godan verb with 'su' ending

    to be profoundly compatible, to be inseparable, to be so close as to reveal to each other the bottom of one's heart

    • 彼とは学生時代から肝胆相照らす仲だよ。
      He and I have been inseparable friends since our student days.