Shinimodori no Mahou Gakkou Seikatsu wo, Moto Koibito to Prologue kara (※Tadashi Koukando wa Zero)  

Return From Death: I Kicked the Bucket and Now I'm Back at Square One With a Boyfriend Who Doesn't Remember Me, 死に戻りの魔法学校生活を、元恋人とプロローグから（※ただし好感度はゼロ）

Oriana was enjoying her life at magic school with Vincent by her side during her fifth year. However, her happiness was short-lived as Vincent passed away under mysterious circumstances. She woke up in her seven-year-old body with no memory of how she died. Despite her efforts to find her way back to Vincent, she discovered that he had no recollection of her existence. Now she must start over and try to alter the outcome of Vincent's fate. Can Oriana overcome this challenge and make her relationship with Vincent work out?