Myriad Realms: I'm No Savior

A shooting star streaked across the sky, and Li Yun gained a System that could take him across the Myriad Worlds. Cultivation, technology, gods and demons, monsters and marvels... From an ordinary life to immortality, he would write a new legend.

"Wait, nobody told me the worlds in novels were real!" Li Yun watched a towering mountain get cleaved in two by a single sword strike and panicked a little...

After his girlfriend broke up with him, Li Yun obtained a System that let him travel back and forth between various worlds and reality, steadily gaining tremendous power. Though he never thought of himself as the kind of selfless savior who would give everything for others, whenever he saw people suffering, he couldn't help but lend a hand. (A private thought: If everyone's dead, who am I supposed to show off for? The air?)