Transformation: My System Is Toxic

In a single morning, Shi Nan traversed time and became Shi Lan, the legitimate eldest son of a dominant family in Tenglong City

"Born with a useless body" equipped with a system, a quintessential male protagonist template

However, the heavens are unpredictable, and the legitimate eldest son has turned out to be the legitimate eldest daughter who has been disguised as a man for nearly twenty years. Even that system is fraught with deadly poison

Immortal, divine, Confucian, and Daoist; human, demon, Buddha, and妖.

A path leading to the pinnacle of martial arts.