I realized in the series that Hibiki and Kasumi tend to be grouped together when in interactions with Ushio.

I wonder if there is a particular reason for that :O

Zikrayrus said:

I realized in the series that Hibiki and Kasumi tend to be grouped together when in interactions with Ushio.

I wonder if there is a particular reason for that :O

It's translated now. I believe this is a historical reason why.