[Crossover] Becoming the Main Character in Every Fanart

[Blurb in first person, main story in third person] My name is Shiba. I'm a boy, a student, and a BL manga artist on the side. I consider myself straight. I only draw this kind of thing because BL manga makes good money. I've drawn a lot of fan art, even though I haven't actually read most of those manga. For example, Dazai and Chuuya, a pink-haired boy in a mask and another boy readers all like to call a dummy, a seaweed-haired demon and a man everyone calls Mushitaro, or a poor kid called Suzuki Iruma with Azz, his upperclassman, and a red-haired butler cat... I've lost count of how much fan art I've drawn. But my art kept getting better, and I kept earning more, until someone offered me a high price to draw an original work. Then I realized something wasn't quite right. The person who offered me all that money... said his name was Saiki Kusuo. That name sounds kind of familiar. I gave in to the temptation of money and took the job. But... why am I still drawing fan art?! Is my memory failing me, or has the whole world changed? Why did all the fan art I drew before suddenly become original works? Didn't you ask me to draw these for you? And what's even weirder is, I remember my world being a perfectly normal modern society. So why does every one of my classmates have magic now? Fine, you suddenly have superpowers. But you even changed your names to sound Japanese! What, am I the only Chinese person left in the whole world? I'm changing my name too. From today on, I'm called... Niu Gulu Shiba! And later... things got even stranger. Not only could I run into those manga characters in my world, I also discovered... Every character in my fan art who had been labeled the "bottom" had turned into me. Help, Boss Saiki, I don't want to draw BL manga anymore! -- PS: 1. The setting is an alternate modern world where everyone is a mage. It only borrows the anime characters' designs, personalities, and abilities. Everyone has a different identity in the modern world. 2. Characters from all kinds of anime may appear. The fan art "I" drew has magical properties, and everyone's impression of and feelings toward "me" depend on the type of fan art. 3. The protagonist wakes up one day to find the world has changed. The anime fan art he drew has turned into real-life versions of the characters, but since he hasn't seen them in person at first, he thinks his drawings have become original works. 4. Strong warning: characters may be out of character. Theme: Love.