The tone of this event promises to be more political than the vegetable costume demo, though it's likely their paths will cross at some point. Protestors are invited to gather at 11.30am, with rally speeches taking place at midday, followed by the march itself. Special guest speaker is former Transport Minister, Nobuaki Futami.
Note that this event does not take place at Meiji Jingumae, but at Meiji Park. Well known for its flea markets, this venue is a five-minute walk from Sendagaya Station (Oedo line).