You'll more liable to get a more accurate and open answer asking Cloud than asking Sephiroth. He tends to find everyone and everything other than his partner beneath him.

[She sniffs. It's clear Akiha doesn't like Sephiroth. Yet, they are one of the few pairs Cloud and Sephiroth has gone on joint missions with. Curious.]

When you both fought Kharon, did she ever make mention of a witch named Hachi? And what type of bird was her familiar?