Board Thread:Questions and Answers/@comment-24302151-20140423151454/@comment-4957813-20140605223938

In war, side is used in the connotation of are you fighting in x's or y's forces. Thus, if Yhwach wants him in his forces, then he wants Ichigo on his side of the war. There is a difference between "being on Yhwach's side" and "standing at Yhwach's side"