Board Thread:Questions and Answers/@comment-2197197-20160911070805/@comment-28044177-20160912202447

Yoruichi and Renji were able to see Zangetsu because of the Tenshintai. No one else saw Zabimaru but Renji. Cang didn't see Hyourinmaru. Lille didn't see Katen Kyoukotsu. Kyoukotso had Nanao's Zanpakutou, that's why she could see it at the time.