At the Beginning, the Zanpakutō Killed the Old God.

Also known as, after ten thousand rebirths, twenty thousand years outside the Seireitei. Qi Ling continued to grow stronger in the cycle of rebirth, from a small captain-level figure to a big boss who could kill the old god at the beginning. In this life, he killed King Yuxu, became a royal agent, merged with Xubai, supported Qi Yuxu to build the ancient palace, usurped the position of the sole bishop of the Guxing clan, and destroyed the invading army of old gods... When he looked back, he found that legends about him were circulating everywhere, but he was very humble. Qi Ling said: I am not strong enough. When I can kill the old gods without freeing my Zanpakuto, I will be strong. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.