I Saved the Doomed Richest Man

Ethan is a broke history student who somehow slips back through time into the land of Great Liang. There he crosses paths with Samuel, the wealthiest man of the era, whose fate is sealed as a doomed figure. Ethan steps in to rescue him by drawing on his knowledge of glassmaking, a skill that could change both their lives. Their bond grows as Ethan tries to keep a man marked for disaster alive.