双子の妹に殺された姉、二度目の人生は初恋のイケおじ王弟にフルベットします

Diana, who was killed by her twin younger sister, realized she had traveled back in time to the morning of her graduation ceremony. She begins to struggle to save Alan, her first love who lost his life in her previous life. A Toshinosa Romance Fantasy Restart of a young lady who met a tragic death begins!