The Entire Court Begged Me to Ascend the Throne

[Live-in son-in-law] [Ning Yi] In the thirty-eighth year of Jinghan, the State of Jing fell, and the whole Wu Dynasty celebrated. An unwelcome guest arrived in Jiangdu. His position was awkward: he was a live-in son-in-law, running a general store. He could have lived a peaceful life, but someone was determined to make trouble for him and wanted him dead.

How can a lowly live-in son-in-law use a System to turn his fortunes around, amass unimaginable wealth, and dominate the Wu Dynasty...?