Kazuma suggests he nobly sacrifice himself to step on one of the plates as a test, which kicks off a very silly argument between him and Ryunosuke over how dangerous this even is (children do gym battles!!) and who should actually be the one to do it.

While they're distracted, Yujin and Guillermo decide to test the plate in the bottom left corner by having Yujin step on it. GREAT JOB BOYS.