Reborn Again and Again, I Turned Out to Be My Own Grandson

[Transmigration + rebirth + descendants of all genders + seeking immortality + harem] Liu Yi, a top modern strategist, dies suddenly and is reborn in the Great Yu Dynasty. After seventy years of ordinary mortal life, he falls into an endless prison of bloodline reincarnation. Through a thousand lifetimes, he vows to cultivate immortality and break free. Using the cunning of a mortal, he lays an astonishing grand scheme, turning his bloodline into pawns, luring female cultivators to serve as vessels for spiritual roots, and weaving a network of descendants spanning multiple sects. He maneuvers against the main branch of his family, monopolizes resources, and raises descendants with top-grade spiritual roots, using schemes and rivalries to propel the rise of the Bloodline Alliance. When his finest descendants come of age, he reaches the end of his life in his 190th generation, waiting to be reborn and set foot on the path to immortality himself, bringing to an end this ultimate contest, one wagered on reincarnation and aimed at the immortal path.