Most people don't choose reincarnation. Reincarnation finds their way to them. Perhaps they did something great in their life. Or maybe truck-sama wasn't looking where it was going. But without fail, those who reincarnate are destined for something great. A new life where everything changes for the better. But... Reincarnation isn't always the greatest thing. Sometimes you just draw the short end of the stick. Di Tou just happens to have drawn the shortest stick. Pulled out of his life randomly. Taken by a crazy old eccentric man not as a disciple, but as a body double?! And a janitor body double no less?! Grasping a system to find... It's a JANITOR SYSTEM!? Truly, how unlucky can one get?
Hearing of this legend, Di Tou was naturally somewhat scared. Just look at how that wise old man hadn't been able to win at the question trade even once! In terms of questions, although he believed that he might have a few answers from the get go thanks to the riddles on Earth, Di Tou really doubted this would be one of those story situations in which the main character would find out that the impossible puzzle or quiz no one had ever solved before was actually a very simple word game that he already knew the answer to. He wasn't that smart, and people here weren't that dumb! If it was really that easy, someone would have solved it by now, even if by dumb luck.