A Guide to Grace and Integrity in the Northern Song Dynasty

Historical What-If: Getting Visibly Stronger Through Hard Work, Who Could Say No?

I'm looking for books similar to *Three Kingdoms: Work Hard to Get Stronger, I Defeated Lu Bu with One Slash*. Historical fiction with a creative twist: the protagonist transmigrates as Yuan Shu's son and visibly grows stronger just by working hard. How could anyone resist? Time to grind. Strength ↑, intelligence ↑, command ability ↑, marching...