Seats for many games in Japan are allocated on a first come first served basis. The person at the head of the queue is entitled to the best seat available.
The queueing system for those seats though is most likely completely unique to Japan. On the day before the game, people arrive at the stadium an put a marker on the ground, on which is written their name or possibly the names of several people to stake their claim to a place in the queue for seats.
It sure is peculiar and probably would not work anywhere else in the world. Certainly not in Ireland anyway.
via Reddit