Hatsumi Soke announced last year that the Shihan of the Bujinkan could charge membership fees to their perspective dojo's. This is the membership to Ishizuka Sensei's dojo and not the Bujinkan itself.
Those wishing to train at Ishizuka Sensei's dojo (not the hombu) must have a valid membership card for the year. Training with Ishizuka Sensei is a not to be missed opportunity.
Please note that all orders will start shipping around March 7, 2019.