Redemption of the Blue Rose Princess
MC was the only princess and heir of their country, she was spoiled, not educated to be a ruler, but she loved and trusted her king. But a rebellion happened, her aides want her to escape but she wanted to save her king but what she saw was her king embracing another woman, she was mocked all along she wasn't respected as the queen and the king had other woman, she was killed by ML for her being oblivious on the sufferings of the citizens and loved the tyrant ruler. Mc then went back to past when the king was still her father, she met ml, who was the genius but was suffering from abused of all since his grandfather was a royal killer, since mc knew his painful past, she appointed him as her aide. Mc was still scared of ml killing her but she knew that the killer ml was not ML as she will correct her past actions, she then told ML about her past life
They Say I Was Born a King's Daughter