C229 Reparation of husband, wife and debt (1)

"Master, an eagle letter has arrived." Gu San knocked on the door, pushed open the unlatched door and walked in.

It was late in the night, and Gu Yicheng was currently leaning on the side of his bed, flipping open the books that Yun Qianliang usually washed before going to bed. The books she read were exceptionally miscellaneous, there was a mechanical technique