We have Japanese style Curry (not Indian style), and there are many fastfood style shops in our town.
Curry dish is usually served thick curry sauce with rice and pickled vegetables and shallots.
It is very popular among office worker and students since it is reasonable and convenient and delicious .
In shop, you should buy a ticket with a ticket machine, sit on the counter, hand over the ticket.
You can choose the hotness ( very hot or hot or mild ) and size, various topping ( cheese, croquette, pork-katsu, egg, vegetables, etc.) for your dish.
My favorites are "hot pork curry" of curry shop C&C and "chicken curry" of Matsuya that is 290yen,very cheap.

Ta

This is the fried chicken of the kimchi flavor.
Since it is delicious even if fried chicken cools down, it is suitable for the dish (okazu) of the lunch box.

It's a simple recipe!
1 Cut the chicken into one bite size
2 Soak chicken in kimichi sauce and shoyu (soy sauce) for 15 minutes
3 Attach flours to chicken lightly and fry it in oil

Ta

The Japanese liking of curry may seem a bit surprising to people from abroad.
The are countless numbers of curry shops in Tokyo, ranging from Indian, Thai, European (!), to traditional Japanese curry. Magazines often publish articles listing the "best curry rice in Tokyo", and people head to their favorite shops to wait in line to eat them.
There are a variations of curry, like curry-udon(noodles), curry-bread, and several shops now serve "soup-curry".
Curry in Japan is Japanese food, even from the fact that most curry is served with rice as "curry-rice". The root of this culture is the curry-rice that is served as a popular and favorite house dish in Japanese homes. Most Japanese kids grow up eating lots of curry, so the taste is well a part of the Japanese toungue, just like soy sauce is !