A Dying Guard Promised Me Freedom if I Came Over, So I Took His 20 Years and Killed a Tiger Demon

If the video gets 50 comments, I’ll post part 2. He promised me freedom. All I wanted was his 20 years. A modern man wakes up in an exiled girl's body in Tang China, surrounded by corpses and a tiger demon that will not stay dead. A golden scroll turns every kill into Cultivation Years, so she makes one ugly choice to stay alive, then keeps spending the years until a dead man's coat becomes a Demon Suppression Division uniform. This isekai system story runs from a field of bodies to a duel with a Core Formation ape on a lone peak, with a general who knows exactly whose daughter she is. Would you have taken the years? (36931)