You just need
0 force (max) on both Cliff and any girl. That can take some work on first playthrough but you keep the characters' force on consecutive games. Put points into Will to increase Force faster on level-ups.
Phlebas the Phoenician, a fortnight dead, Forgot the cry of gulls, and the deep sea swell // And the profit and loss.
- - Gentile or Jew // O you who turn the wheel and look to windward, Consider Phlebas, who was once handsome and tall as you.
[T.S.Eliot: The Waste Land - IV. Death by Water]