Can the titles of online novels be the same? Can pen names be the same? Is it infringing to use someone else's name?

Well, you can't drop it, and when you take a pen name, the system will remind you that "this pen name is registered" and so on.

As for the title of the book, in fact, there will be repeated names occasionally, but of course it is best not to repeat the name, but to think of a special name.

I always choose novels from pen names. A good name is the key first step to attract readers.