Talk:Hotarumaru/@comment-26955311-20151129125107/@comment-26480157-20151129135100

I believe that is the only connection, Aizen Kunitoshi (Tantou)  is also a Rai sword and Akashi mentions him in a citadel line too. There is a lot of fan art of the three of them together. It's just like Ichi-nii with all his little brothers. :)