Pirates of Fandom, Don't Fall in Love with the Main Character

I would like to read a book similar to "The Stealing Pen: Pretending to Be Inscrutable but Beautiful, Strong and Tragic (Echoes from the Tomb Robbery Past)". The protagonist can be either male or female, and ambiguity is acceptable, but you must not fall in love with the protagonist, and don't dream of a female novel! Note: I think the protagonist group is Nenniu