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 murdered by her twin sister, finds herself transported back in time to the morning of her graduation ceremony. She begins to fight to save Alan, her first love, who lost his life in her previous life. The romance fantasy about a young lady who met a tragic end and gets a second chance at life, featuring a significant age gap, begins. (Source: Bushiroad, translated)