The Legendary Janitor
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?
Techniques...
After practicing for half a day, Di Tou had roughly understood the concept of the technique, and he couldn't help but let out a sigh of approval. This technique was too powerful, too beautiful, too useful!
Er, of course, it wasn't actually that exaggerated, but it was like firewood on a cold winter's day, it had been delivered at just the right time. Di Tou had broken through to the Nascent Soul Stage, and as he broke through, he realized that although his strength had increased by leaps and bounds, it came with other complications. Namely, his old techniques were no longer able to keep up with his current strength, and rather than serving as refined ways for him to enhance his strength, they instead became restrictions that limited his ability to perform.
In essence, it was a child was suddenly placed in an adult's body, they would be disoriented and unable to move properly with adaptation.