I Drew the Zhu Xian Sword in Another World

[Magic + Cultivation + Another World + Harem] I, Lin Bei, was a peak cultivator in the cultivation world, nicknamed the Saint of Survival, Venerable Celestial. After failing to overcome my tribulation, I was reincarnated in a sword-and-magic world. I'm a good-for-nothing from the start, but I discover that I possess the Supreme Bone and the Immortal-Slaying Sword... After fighting my way out of a labyrinth, I become the Dragon Princess's fiancé, and the mature Elf Queen takes a liking to me. Even the Demon King's yandere daughter won't leave me alone, and I have a little sister who's obsessed with her big brother. What should I do? It's urgent, waiting for replies online.