Great Ming: My Grandfather Zhu Yuanzhang Keeps Fleecing Me

Zhu He wakes up one morning and finds himself transmigrated to the Hongwu era of the Ming dynasty. He has a Karma System: after receiving a reward from the System, he has to fulfill a vow in return.

"System, um... there's something I don't understand. Say I need a cultivation technique for immortality. What would I have to give in return?"

"Please make a more reasonable request, Host. Immortal cultivation is unscientific."

I've transmigrated and even got a System, but I still have to care about science?

Then...

Grandfather tells me that my father is suffering from the same cold as the Crown Prince and is about to die.

I have no choice but to make a wish for a special medicine that cures colds, but the System makes me pay dearly for it.

Then Grandfather asks me to come up with a way to increase crop yields. I do, and the System nearly works me to death.

After that, Grandfather becomes the one who keeps taking everything I have.

When I can't take it anymore, my grandfather reveals the truth, appearing in a dragon robe.

Zhu He: "Go ahead and take some more, Grandfather. You haven't taken nearly enough yet!"

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.