And after that, visit the Tokyo Parasite Museum (https://www.tofugu.com/travel/parasite-museum-tokyo/ -- probably best not to visit this link while eating breakfast).

In all seriousness I have been to this museum and it's fantastic.

just to set expectations. it's small museum. just 2 rooms. it is amazing and you probably will not be comfortable eating sushi, sashimi, basashi for a fews days after :p