Time Travel to the Childhood of the Sinister Gangster

An accident caused Ning Mengmeng, an 18-year-old girl who originally lived in 2019, to be trapped in the timeline before 2019. In this timeline, she took in a boy, but this boy was not the simple good boy she thought. As time goes by, his dark nature is undoubtedly exposed... To sum it up in one sentence, it is a story about a time-travel heroine who is seduced step by step by the big bad wolf hero into becoming his wife. The female protagonist is smart, kind and powerful, while the male protagonist is a sinister, loyal and powerful man. (Strong woman and strong man, 1v1, sweet and slightly sadistic, sadistic male protagonist)