I Became the Sister of My Old Enemy

In his previous life, Yan Yao was a powerful demon king who was feared by everyone. Unfortunately, he was short-lived and was shot through the heart by an old enemy at a young age. When she opened her eyes again, she was reborn as the sister of her former enemy. Yan Yao: Oh! [Reading Tips] 1: Not related by blood 2: Mutual redemption, the heroine was not killed by the hero in her previous life 3: Neither the male or female protagonist is perfect. The female protagonist is not a good person, but she is trying to be a good person. Purpose: Live a different life