Martial Saint in the World, I Will Kill Demons in Exchange for Immortality!

[Decisive killing + big muscular dominance + single female protagonist] (slightly slower pace) In the last years of the dynasty, swords and wars were everywhere, demons were rampant, and people were suffering. Qin Shou traveled through time and became a rich young master with an unknown gold foil. He originally thought that there would be no big changes in his life of cultivating his health and cultivating his character, occasionally arranging flowers and jade, and walking with birds. As a result, all the troubles in the world came to him, and the truth about the gold foil was slowly revealed... "Why are you forcing me! I just want to walk the birds!!!" "Monster! Enter my Book of Ten Thousand Demons!!!" "Don't get in? Die to me!!!"