At the End of Ming Dynasty: the People of the World Depend on Me to Save Them!

If you had the ability to travel back and forth between modern times and the late Ming Dynasty, what would you want most? Needless to say, of course it's money and beauty, oh no, career and love... What, why are my ideals so low? Okay, then let's save another life or something... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.