Reborn, I Parted Ways With the Male Lead

Mu An Nian is reborn, with something calling itself a System in her mind. The System tells her she is the heroine of a novel and the Mu family's adopted daughter. When the Mu family's biological daughter returns, everyone kicks her while she's down.

Later, she meets the male lead, Qi Yao. She becomes a stand-in for the woman he has always loved, and as they spend time together, he falls for her without realizing it. When his beloved returns, she schemes against Mu An Nian at every turn. The heroine and male lead then go through a series of heartbreaking trials, but ultimately get a happy ending.

But somehow, something goes wrong. The male lead goes mad and jumps into the sea to die, while the female antagonist kills her. The world's story line collapses completely. Mu An Nian is reborn to set it back on track.

The heroine × her childhood friend; the male lead × his beloved

An entirely fictional setting, an entirely fictional setting, an entirely fictional setting