Life Simulation: I Caused the Female Sword Immortal to Regret Forever

First Simulation: You are transported to a world of cultivationYou become a refugee fleeing famine. During your journey, you save an abandoned baby girl and become her elder brotherYou rely on each other, becoming each other's supportAt the end of the simulation, you shield the now-grown girl with your life, sacrificing yourself to block numerous demonic cultivators. You die, and the light in the girl's eyes fadesSecond Simulation: You are transported to a world where steam and magic coexistYou immerse yourself in the study of magic, obsessed with its research. One day, while out, you encounter a half-blooded demon girl wandering the streets. You take her in as your studentYou teach the demoness what it means to be human, show her the beauty of the world, and nurture her into a miracle that surpasses even the godsAt the end of the simulation, you die of old age in front of the nearly immortal demoness due to your mortal lifespanOne simulation after another, one encounter after another.Xu Xi suddenly felt something was off: "Wait, you said you're coming to the real world to find me?"