I feel like there is nothing to write about. It is a fan novel that I wrote to commemorate the good anime movies I have seen for more than ten years. There is no protagonist, and one person is changed in each world. First, people from the real world cross over to Batman, then Bruce crosses over to Marvel, and then the Hulk crosses over to One Piece. I originally posted it on another website, but no one read it. So here I am looking for some friends who like this kind of books. This book is just for entertainment, just enjoy it.