If Lotteria still has this when next I visit:
That is the "Attack on Titan" 10 patty burger.If 10 patty is too much, they have the smaller 7 patty and 5 patty versions.
More
pictures at this blog.
And what do you have a 10-patty burger with? Large fries of course.
Not the one on the left. That's puny. The one on the right has 1,150 calories. Perfect filler to the 3,672,458 calories (approximation) of the 10-patty burger.