I Am the Dao Ancestor of All Worlds, Starting with Lelouch

Su Han transmigrates to a world of immortal cultivation, but he is a lowly rogue cultivator with no backing, no talent, and no resources, at the third Qi Refining level. He assumes he is destined for a life of mediocrity, but unexpectedly takes control of the supreme authorities over both time and space!

With one step, he arrives in the world of Code Geass and meets Lelouch, the ultimate sister-con, who would destroy the world for his sister. He cures Nunnally, lets Euphemia remain forever innocent and happy, and helps the immortal witch C.C. escape her loneliness. He even gives Suzaku a good smack!

With another step, he arrives in the world of My Youth Romantic Comedy Is Wrong, as I Expected, where he meets the cool yet warm-hearted Yukino Yukinoshita, the innocent and vivacious Yui Yuigahama, the quick-tempered Shizuka Hiratsuka, the scheming junior Iroha Isshiki, and the little angel Saika Totsuka.

He has also visited the world of Saekano, becoming the man behind Utaha Kasumigaoka, Megumi Kato, and Eriri Sawamura.

He has visited Honkai Impact 3rd, too, and given Elysia, who loves all living things, her first taste of selfishness.

He has also visited Genshin Impact, revived Raiden Ei's older sister, Raiden Makoto, and Focalors, the Hydro Archon who sacrificed herself to save Fontaine. He also gave Furina a happy life.

And he is the world's most doting big brother to Caelus.

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.