今世では、ひとりで生きようと思います。そのはずが…, I Wanted to Live Alone in This Life… But Things Didn’t Go as I Planned, I Want to Live on My Own in This World. Alas..., 이번 생은 혼자서 살 생각이었는데, Konyo De Ha, Hitori De Ikiyo to Omoimasu. Sono Hazu Ga...

"This time, I will seize a life for myself." Lady Marisha, a Marquis's daughter, was unable to use any magic and was shunned by her family. For her, the existence of her fiancé, Heinrich, was her only encouragement. However, after witnessing Heinrich's affair with her younger step-sister, Canolia, Marisha remembers that her past life was that of the "Black Saint." Deciding to live this life for herself, Marisha tries to run away. Then, the suffering Theodore appears before her... What will be the outcome of the temporary engaged life between Marisha, who wants to live alone, and Theodore, who wants to make her his own—!?