Holy Undead ~Himote de Bocchi no Shirei Jutsushi ga, Seijo ni Tensei Shite Otomodachi o Fuyashimasu~

Frankel was hated as a wicked necromancer and an abhorred man. But he was not evil, he was just an unpopular, socially awkward loser who liked the undead. However, society thought poorly of him as a necromancer, and he was shunned, hated, and finally defeated by the heroes Cain and Flora. Just before death, Frankel invoked a forbidden curse that would make him the King of the Dead. However, the magic failed, and he thought he would simply die...but for some reason, he is reborn as Yuricia, daughter of Cain and Flora, with the memories of his previous life! A love for the undead! All women—be they malicious bullies or not—are goddesses! Inside this dainty, pretty girl lies abnormal principles. And Yuricia—ironically—receives the blessings of the Holy Mother and acquired an unprecedented five Gifts, including incredible healing power! However, Yuricia uses her power for her own personal gain. Her goal is to be reborn as a necromancer! But the healing interferes with her dream. Various trials and errors are on repeat. From an outsider's perspective, could it just be eccentric behavior?　 However, those around her always react favorably to the various uproars Yuricia kicks up, and despite her own intentions, she ends up helping many people. She accomplishes many great feats and eventually becomes known as the Healing Saint... Though many handsome men adore Yuricia, she is indifferent. This includes the handsome Anthro swordmaster Wolferos, her brave brother with a sister complex Alexei, the cursed and highly sought after prince, and the seriously injured future hero. She heals them from top to bottom, and doesn't care if they call her a street healer. All she wants is super rare undead materials! And...? She looks prim and proper, but inside she is actually a he—a necromancer loser. This is the story of healing and salvation woven by a beautiful girl with an unhinged moral center! (Source: DLsite)