The Villainess of Evil and the Twelve Eyes

The condemned duke's daughter, Serena, is on the brink of death and reflects deeply on her actions, “What I lacked was a capable ally.”. Time rewinds and Serena is given a second chance at life, determined to take down all those who abandoned her in her previous life. Using her regrets, she takes in six helpless children and tries to raise them to be the strongest allies (assassins)…!?