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?
Shaking these thoughts out of his head, Di Tou sighed and knew that however he might feel, it wasn't his place to judge. After all, ultimately it as a different world with different customs, and even if this was a common practice, how did he know who practiced it and who didn't? Forcefully assuming that every old person did such a thing was wrong.
Besides, compared to Earth and compared to the rich folks who did outrageous things on the daily, drinking monkey's blood, paying off fines as if they were normal charges, hidden slavery… the such… although the 'evil' here was much more straightforward and visible, it wasn't really necessarily all that evil.