[Reborn + Transmigrated + Western Fantasy] I'm an Onmyoji in a Western Fantasy World

I'm hopelessly addicted to the mobile game Onmyoji. . I can't make a cover, so let's pretend there's one. . Blurb: . The City of Legends is home to the world's finest mages: Ice Mages who summon frigid winds to create snow and ice, Fire Mages who wield blazing flames, Arcane Mages who grasp the mysteries of magic, pioneers at the forefront of magic and alchemical technology, and devotees who sacrifice themselves for knowledge and wisdom. . ... I get all that, but Father God, can you explain why the hell she transmigrated as an Onmyoji? . Her story has never been short of "And then she met you" moments. . She thought all mages were wise and composed, until she met His Highness Lancelot. . She thought all the assassins in the Brotherhood were wicked and charismatic, until she met Silver Cat Mars. . She thought all duchesses were noble and aloof, until she met Miss Cici. . She thought blah blah blah, until she met so on and so forth. . Of course, surrounded by all sorts of oddballs among the professionals, she is an oddball (failure) herself. . Many people think Onmyoji exorcise evil spirits and protect the weak, until they meet her. . A hypocrite. . . Also known as: Am I Really the Main Character? The Whole World Is Full of Mary Sues and Overpowered Heroes, Except Me My Travels with My Master and My Shikigami, Who Is Also My Master's Harem A Return to Humanity [x] . . Note: 1. An expansive world with lots of game crossovers. 2. The heroine isn't an innocent saint. If I had to categorize her, maybe she's a black lotus? 3. Is there really a heroine? 4. No outline, just writing whatever comes to mind. Sometimes there'll be lots of passionate action, sometimes lots of filler and daily life. 5. Transmigration and rebirth, but they aren't the same person.