Volunteering at animal rescue in Tokyo

Does anyone have any experience volunteering at animal rescues in Tokyo? Has always been something I've thought of doing but I don't know where to start. Looked up the foreign-friendly rescues here (JCN, ARK, etc.) and it seems like they're all only open to fostering at the moment which my living situation doesn't allow, but I'd like to help somehow. Would be interested to hear if anyone else has done it before and what rescue you went to.

by Sparks_9935