First of all, I want to express my gratitude to the Mental Arithmetic Expert, Goo Min-jae, and his family for participating with us. ^^ Facing off against the Mental Arithmetic Expert, whom I've only seen on screens before, was truly surprising. He was incredibly fast, much faster than I had anticipated. It was a shock, really. I heard that he practiced a lot beforehand for our shoot together. I was really impressed. The Mental Arithmetic Showdown^^ that had us on the edge of our seats(?) Please enjoy watching!