Kirawaremono no Reijou wa, Watashi ga Aishimashou. ~Imasara Dekiai shite Kite mo, Mou Osoi desu!~

After dying alone, office worker Aki awakens to find her soul inside the body of a noblewoman named Isabelle, a girl from a powerful ducal family. Isabelle was known for being arrogant and hated by all— Her family ignored her, and even the one she loved coldly rejected her. She died unloved, with a shattered heart. But Aki, who also suffered from loneliness in her previous life, made a firm decision: “If no one else will love her… then I will.” However, she soon starts noticing strange things about the people around her… Was everything she thought she knew about “Isabelle” really true? Or are there hidden truths that were never told? https://mechacomic.jp/books/200616