A Folklore Class on Tokyo University's Yokai

Short blurb: The folklore studies program in the history department at Dongqing University holds an unusual field trip. Watch as a beautiful professor leads her students on one bizarre, dangerous journey into the world of ghosts and monsters after another... When creatures of legend appear in the real world, it's not all fun and games. Sang Ning's blurb: Who is she, really? Human or monster? As she takes course after course exploring ghostly folklore, Sang Ning gradually discovers how different she is from ordinary people... Perhaps one day, she'll realize that her entire life has been nothing but a trial. This is a supernatural story about ghosts and monsters, but it's not horror, and it won't get too dark. The heroine will get a golden finger, awaken supernatural powers, gain a pocket dimension, and set out to rule the world of ghosts and monsters and reach the pinnacle of life! (I don't believe a word of that myself!) A friendly warning: The male lead has nonhuman values. Righteous moralists and white-lotus types, please leave on your own. There's an X in the top right, thanks. Related series novel: The Tale of the Bone Lovers (Completed) Before you start reading, let me tell you a story: Once there was a thousand-year-old monster who thought being a teaching assistant wasn't enough to pick up girls. With the backing of a network of monsters that had infiltrated every corner of human society, he decided to become a professor. Then someone said, "No, that's unrealistic." Assistant Hua was very unhappy and chose to send you all skyward. Theme: