A thousand years ago, Mu Qingyun became a demon due to her obsession, fell into demons and slain immortals, earning her the name of the Heartless Lord.
A thousand years later, the immortals and demons stand side by side, but they give everything they have to one person.
In this world, there are always feelings that you cannot repay, and there are always debts that you cannot repay.
Is it love or obsession, who can tell?
Intention: Some regrets can only be regrets. If they become obsessions, they will hurt others and themselves.