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?
Widening his eyes, Di Tou couldn't help but feel amazed. Indeed, sometimes the answer was in front of you all along. Although it wasn't as specialized or specific as a technique as he would have liked, ultimately techniques to make one 'learn' faster would be rare even if Mental Force wasn't a dying school of cultivation. It was just broadly speaking a contradiction, and if there really was such a miraculous technique, unless it had life-threatening downsides, it wouldn't be a unique technique but rather a standard fare that everyone was expected to pick up.