Lets just plant potatoes

Yin Fu caught hold of the waistband of his sweatpants before pulling them down, revealing his toned yet lean legs. However, as soon as he pulled his pants down, Mo Qiang's gaze fell on the calves of his legs which had faint white marks on them as if he had been whipped over and over again. 

She raised her finger and then traced the white scars causing Yin Fu to shiver but this time it was not because of delight. His eyes fell on those ugly marks on his calves and he smiled at Mo Qiang before saying, "Those are nothing just something that I received when I was very young… you know how bad kids are whipped because they don't do a good job, right?"

It was just that he was whipped because his mother wanted to make sure that he would be prepared for everything that his target might want from him. Though Yin Fu made sure to take care of the marks on his body the ones on his calves were made with burning hot poker and thus they couldn't be replaced that easily.