Kaiki Shita Akugyaku Koujo wa Kokurekishi wo Nurikaeru

Ariadne adored her brother and committed all sorts of evil deeds to make him king. She was betrayed by the brother she trusted and executed with regret in her heart. However, when she came to her senses, Ariadne had "returned" to her 15th birthday. Given the chance to start over, Ariadne resolved not to repeat her mistakes. She vowed to "make amends to the good people I have befallen" and "take revenge on the evil people who have taken advantage of me," and struggled to erase the dark history from before her return.

(Source: Natalie, translated)