An_Ineloquent_Pen

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?

The Legendary Janitor

In the end, Di Tou ended up being An Yang's lab rat for the next eight hours, and it was only well after the sun had fully set that Di Tou managed to convince An Yang to take a break and resume tomorrow, "An Yang… if I keep going I won't be able to properly swing the sword anymore, what useful data will you get then."

Pausing for a moment, An Yang nodded and said, "Alright. Let me finish recording the data. We can pause here for today."

Letting out a sigh of relief, Di Tou directly dropped to the ground, throwing the bone flute in his hand to the side. Of all the things he had practiced with today, he had to say the flute was the most normal, but even then, it was a f*cking flute.

Lab Rat