Lei family manor, in the study.

Lei Sheng was wearing a white sportswear, with an old face, standing in front of the table with a serious expression, and as he smuggled a few strokes, the four big characters of 'Heaven rewards diligence' were written.

The housekeeper standing next to him was about to open his mouth to praise a few words, but he saw Lei Sheng crumpling the calligraphy he had just written into a ball and throwing it in the trash can next to him.

......

Chapter 521 of "The Peak Mad Doctor of the City" Lei Sheng is hitting with his hand, please wait a moment,

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