I Transmigrated to the Cultivation World, Where I Can Summon Mythical Immortals

"The Legend of a Peerless Prodigy" + "Speedrunning the Eight Domains: The Demon Venerable Responds" + "The Ultimate Demon Cultivator" + "The Pure-Hearted Eight Domains Fall for Me" + "The System Is My Cheat" [You are an ordinary Qi Refining cultivator in the world of immortal cultivation.] [One day, you secretly explore a cave abode left behind by a predecessor, all by yourself.] [Just as you enter the final secret realm…] [“Three thousand years! Heh heh heh! At last, a decent Dao embryo has come to the cave abode I prepared. Come, young friend, merge with me! Heh heh heh!”] Li Wang transmigrates into the body of a Qi Refining disciple of the Immortal Dao Sect in the cultivation world. While searching for opportunities for the genius senior sister he loves, he unexpectedly finds himself on the verge of being possessed by a mighty demonic cultivator. At the critical moment between life and death, the System arrives. “Host is binding the Mythical Immortals Summoning System. Host, please randomly summon your first legendary immortal or demon for help and obtain the corresponding power…” Two years later, high above the myriad heavens of the Immortal Realm, powerful figures from all sides exclaim, “That makes no sense! He advances a whole realm every month!” (Note: Summoned immortals and demons can only stay for a limited time. They have only temporarily come to this world.)