7th Demon Prince Jilbagias' Chronicle of Demon Kingdom Toppling - Chapter 96.2 - In The Same Boat

A Federation Colonel with abnormal thoughts was locked in a dark room and met a little looney.

“Your whole body emits a scent that I dread (covet) and fear (desire).”

A frigid Colonel X little looney roommate: A sweet story of interstellar travel

- Description from Novelupdates

In her previous life, she tried her best, she struggled. In the end, she has lost to her own mediocrity.

In this life, she resigned to her fate.

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After her mother passed away, Xia Rou reincarnated as an orphan and she got taken in by her mother’s lover. Once again she stepped into Cao family, and once again she had to confront the people she loved and hated……

She dares not to expect anything, only except that she won’t suffer any more in this life……

- Description from Novelupdates

Seven years ago, after their breakup, he disappeared without a trace.