For any foreigner living in Japan, comfort foods can be powerful. And they keep you going when everything around you is strange and daunting. So imagine my surprise when I bit into this. Yea, it looks like a harmless piece of pepperoni pizza- it's not. The cheese has been replaced by a thick layer of mayonnaise, and it's been covered with raw onions and what appeared to be cabbage. It didn't help that the pizza was served cold. To make matters more confusing, pizza here is commonly covered in corn as well. You've been warned, pizza in Japan is rarely what it seems to be.