Reborn Again and Again, I Am Actually My Grandson

[Time travel + rebirth + offspring regardless of gender + seeking immortality + harem] Liu Yi, a top modern strategist, suddenly died and was reborn. After seventy years of mortal life in the Dayu Dynasty, he fell into the endless cage of blood reincarnation. Over the course of thousands of lives, he vowed to cultivate immortality to break the chess game, and used mortal wisdom to set up a shocking chess game, turning his blood into chess pieces, trapping the immortal cultivator as a spiritual root carrier, and weaving a web of blood descendants across sects. He secretly fights against direct lineage, monopolizes resources, cultivates high-grade spiritual descendants, and promotes the rise of the Blood Alliance through utilization and gaming. When the offspring of the best spiritual roots become talents and he dies in his 190th life, he waits for his rebirth to embark on the path of immortality and end this ultimate game with reincarnation as the focus and the path of immortality as the goal.